WO2004101496A1 - Procede de formation d'une liaison carbone-heteroatome. - Google Patents
Procede de formation d'une liaison carbone-heteroatome. Download PDFInfo
- Publication number
- WO2004101496A1 WO2004101496A1 PCT/FR2004/001159 FR2004001159W WO2004101496A1 WO 2004101496 A1 WO2004101496 A1 WO 2004101496A1 FR 2004001159 W FR2004001159 W FR 2004001159W WO 2004101496 A1 WO2004101496 A1 WO 2004101496A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- group
- formula
- carbon atoms
- unsaturated
- compound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
- 0 CCC*=*(C)[C@]1CC(*)CC1 Chemical compound CCC*=*(C)[C@]1CC(*)CC1 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C249/00—Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton
- C07C249/16—Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton of hydrazones
Definitions
- PROCESS FOR FORMING A CARBON-HETEROATOMA LINK PROCESS FOR FORMING A CARBON-HETEROATOMA LINK.
- the subject of the present invention is a method for creating a carbon-heteroatom bond, preferably carbon-nitrogen, by reaction of an unsaturated compound carrying a leaving group and of a nucleophilic compound.
- the invention relates in particular to the creation of carbon-nitrogen bond according to a process for arylating organic nitrogen derivatives.
- arylhydrazines or arylhydrazones which result from the arylation of a nitrogen-containing nucleophilic compound by creation of a carbon-nitrogen bond.
- Arylation reactions involve a catalyst and several types of homogeneous or heterogeneous catalysts have been described.
- Buchwald et al (US 6,235,936) have described a process for arylation, vinylation or alkynation of hydrazines, hydrazones, hydroxylamines and oximes consisting in reacting the nitrogenous compound with a substrate aromatic comprising a carbon activated by a leaving group, in the presence of a catalyst of a transition metal, optionally of a ligand most often a phosphine.
- the disadvantage of using such bases is that they are expensive.
- sodium tert-butoxide is difficult to handle because it is very hygroscopic.
- the objective of the present invention is to provide a method which overcomes the above-mentioned drawbacks.
- a process for creating a carbon-heteroatom bond by reaction of an unsaturated compound carrying a leaving group and of a nucleophilic compound providing a heteroatom capable of replacing the leaving group, thus creating a carbon-heteroatom bond, in the presence of a palladium-based catalyst, optionally a ligand, characterized by causes the reaction to take place in the presence of an effective amount of a metal hydroxide or ammonium associated with an alcohol type solvent.
- metal hydroxide or ammonium hydroxide and the solvent are introduced in the form of an alcoholic suspension prepared by reactive grinding of metal hydroxide or ammonium and alcohol.
- an arylation reaction is carried out by reacting an aromatic compound carrying a leaving group and a nucleophilic compound preferably nitrogen.
- a vinylation or alkynation reaction is carried out by reacting respectively a compound having a double or triple bond in the ⁇ position of a leaving group and a nucleophilic compound preferably nitrogen.
- a nucleophilic compound preferably nitrogen.
- nucleophilic compound an organic hydrocarbon compound, both acyclic and cyclic and the characteristic of which is comprise at least one oxygen atom and / or at least one nitrogen atom carrying a free doublet: said nitrogen atom being able to be provided by a functional group or included in a cycle in the form of NH.
- nucleophilic substrate comprises at least one atom or following group such as in particular:
- the nucleophilic compound comprises at least one nitrogen atom carrying a free doublet included in a saturated, unsaturated or aromatic cycle: the cycle generally comprising from 3 to 8 atoms.
- the process of the invention concerns a large number of nucleophilic compounds and examples are given below, by way of illustration and without any limiting character.
- a first category of substrates to which the process of the invention applies are primary or secondary amines and imines.
- the primary or secondary amines can be represented by a general formula:
- Ri and R 2 independently of one another represent a hydrogen atom or a hydrocarbon group having from 1 to 20 carbon atoms which can be a saturated or unsaturated, linear or branched acyclic aliphatic group; a saturated, unsaturated or aromatic, monocyclic or polycyclic carbocyclic or heterocyclic group; a sequence of the aforementioned groups,
- Ri and R 2 represents a hydrogen atom.
- the different symbols can take more particularly the meaning given below.
- Ri and R 2 can represent, independently of one another, an acyclic aliphatic group, saturated or unsaturated, linear or branched.
- Ri and R 2 preferably represent a linear or branched saturated acyclic aliphatic group, preferably in Ci to C- ⁇ 2 , and even more preferably in Ci to C 4 .
- the invention does not exclude the presence of an unsaturation on the hydrocarbon chain such as one or more double bonds which can be conjugated or not.
- the hydrocarbon chain can optionally be interrupted by a heteroatom (for example, oxygen, sulfur, nitrogen or phosphorus) or by a functional group insofar as the latter does not react and mention may in particular be made of a group such as in particular -CO-.
- a heteroatom for example, oxygen, sulfur, nitrogen or phosphorus
- a functional group insofar as the latter does not react and mention may in particular be made of a group such as in particular -CO-.
- the hydrocarbon chain may optionally carry one or more substituents (for example, halogen, ester, amino or alkyl and / or arylphosphine) insofar as they do not interfere.
- substituents for example, halogen, ester, amino or alkyl and / or arylphosphine
- acyclic, saturated or unsaturated, linear or branched aliphatic group may optionally carry a cyclic substituent.
- cycle is meant a carbocyclic or heterocyclic, saturated, unsaturated or aromatic cycle.
- the acyclic aliphatic group can be linked to the ring by a valential bond, a heteroatom or a functional group such as oxy, carbonyl, carboxyl, sulfonyl etc.
- cyclic substituents it is possible to envisage cycloaliphatic, aromatic or heterocyclic, in particular cycloaliphatic substituents comprising 6 carbon atoms in the ring or benzenic, these cyclic substituents themselves being optionally carriers of any substituent insofar as they do not do not interfere with the reactions involved in the process of the invention.
- alkyl, alkoxy C 4 There may be mentioned in particular, alkyl, alkoxy C 4.
- cycloalkylalkyl groups for example, cyclohexylalkyl or arylkyl groups preferably C 7 to C 2 , in particular benzyl or phenylethyl.
- the groups R 1 and R 2 can also represent, independently of one another, a carbocyclic group saturated or comprising 1 or 2 unsaturations in the ring, generally at C 3 to C 8 , preferably at 6 carbon atoms in the ring; said cycle can be substituted.
- this type of group mention may be made of cyclohexyl groups optionally substituted by linear or branched alkyl groups having from 1 to 4 carbon atoms.
- the groups Ri and R 2 can represent, independently of one another, an aromatic hydrocarbon group, and in particular benzene group corresponding to the general formula (Fi):
- - q represents an integer from 0 to 5
- - Q represents a group chosen from a linear or branched alkyl group, in Ci to C 6 , a linear or branched alkoxy group, in Ci to C 6 , a linear or branched alkylthio group in Ci to C 6 , a group -NO 2 , a group -CN, a halogen atom, a group CF 3 .
- R 1 and R 2 can also represent, independently of one another, a polycyclic aromatic hydrocarbon group with the rings capable of forming between them ortho-condensed, ortho- and pericondensed systems. Mention may more particularly be made of a naphthyl group; said cycle can be substituted.
- Ri and R 2 can also represent, independently of one another, a polycyclic hydrocarbon group consisting of at least 2 saturated and / or unsaturated carbocycles or by at least 2 carbocycles, only one of which is aromatic and forms between them ortho- or ortho- and pericondensed systems.
- the cycles are in C 3 to C 8 , preferably in C 6 .
- Ri and R 2 can also represent, independently of one another, a heterocyclic group, saturated, unsaturated or aromatic, comprising in particular 5 or 6 atoms in the ring including one or two heteroatoms such as nitrogen atoms (not substituted by a hydrogen atom), sulfur and oxygen; the carbon atoms of this heterocycle can also be substituted.
- Ri and R 2 can also represent a polycyclic heterocyclic group defined as being either a group consisting of at least two aromatic or non-aromatic heterocycles containing at least one heteroatom in each cycle and forming between them ortho- or ortho- and peri-condensed systems , or either a group consisting of at least one aromatic or non-aromatic hydrocarbon ring and at least one aromatic or non-aromatic heterocycle forming between them ortho- or ortho- and peri-condensed systems; the carbon atoms of said rings possibly being substituted.
- groups R 1 and R 2 of heterocyclic type there may be mentioned, among others, the furyl, thienyl, isoxazolyl, furazanyl, isothiazolyl, pyridyl, pyridazinyl, pyrimidinyl, pyrannyl, phosphino and quinolyl, naphthyridinyl, benzopyrannyl groups. , benzofurannyl.
- the number of substituents present on each cycle depends on the carbon condensation of the cycle and on the presence or not of unsaturation on the cycle.
- the maximum number of substituents capable of being carried by a cycle is easily determined by a person skilled in the art.
- Amino implemented preferably correspond to formula (Ia) wherein Ri, R 2, identical or different, represent an alkyl group of Ci to C-I5, preferably Ci to C-io, a cycloalkyl group of C 3 to C 8 , preferably C 5 or Ce, an aryl or arylalkyl group from C 6 to C ⁇ 2 .
- groups R 1 and R 2 mention may be made of C 1 to C 4 alkyl, phenyl, benzyl or naphthyl groups.
- amines corresponding to formula (la) there may be mentioned aniline, N-methylaniline, diphenylamine, benzylamine, dibenzylamine.
- R 3 and R At most one of the groups R 3 and R represents a hydrogen atom.
- the imines preferably used correspond to formula (Ib) in which R 3
- groups R 3 and R 4 mention may be made of C 1 to C alkyl, phenyl, benzyl or naphthyl groups.
- Other nucleophiles capable of being used in the process of the invention are oximes and hydroxylamines.
- the oximes can be as follows:
- hydroxylamines can be represented by the following formula:
- R 7 has the meaning given for Ri and R 2 in formula (la) with the exception of a hydrogen atom
- R 8 represents a hydrogen atom, a saturated or unsaturated, linear or branched acyclic aliphatic group; a saturated or unsaturated, monocyclic or polycyclic carbocyclic group; a sequence of the aforementioned groups,
- the oximes or hydroxylamines preferably used correspond to the formulas (Ic) or (Id) in which R 5, R 6 , R, represent more particularly an alkyl group from Ci to C ⁇ 5 , preferably from Ci to C- ⁇ 0 , a C 3 to C 8 , preferably C 5 or C 6 cycloalkyl group, an aryl or arylalkyl group from C to C 2 .
- R 5 ⁇ R 6 R
- R 8 it is preferably an alkyl group of Ci to C 4 or a benzyl group.
- the invention relates more particularly to nucleophilic compounds of hydrazine type.
- R10, Rn, identical or different, have the meaning given for Ri and R 2 in formula (la).
- - Ru represents a hydrogen atom or a protective group G,
- At most one of the groups R 9 and R 10 represents a hydrogen atom.
- Rg and Rio can be linked so as to constitute with the carbon atoms which carry them a carbocyclic or heterocyclic group having from 3 to 20 atoms, saturated, unsaturated or aromatic, monocyclic or polycyclic.
- the hydrazines preferably used correspond to the formula
- R 9 , R 10 which are identical or different, represent an alkyl group of C 1 to C 15, preferably C 1 to C 10, a cycloalkyl group of C 3 to C 8 , preferably C 5 or C 6 , an aryl or arylalkyl group from C 6 to C ⁇ 2 .
- R 8 and Rio groups mention may be made of C 1 to C 6 alkyl, phenyl, benzyl or naphthyl.
- Rg and Rio can be linked so as to constitute with the carbon atoms which carry them a carbocyclic or heterocyclic group having from 3 to 20 atoms, saturated, unsaturated, or aromatic, monocyclic or polycyclic comprising two or three ortho-condensed rings which means that at least two rings have two carbon atoms in common.
- the number of atoms in each cycle preferably varies between 3 and 6.
- Rg and R o preferentially form a cyclohexane or fluorenone type cycle.
- Ru more particularly represents a hydrogen atom, an alkyl group preferably Ci to C 12 ; an alkenyl or alkynyl group, preferably C 2 to C 2 ; a preferably C 3 -C 12 cycloalkyl group; an aryl or arylalkyl group, preferably C 6 to C 2 .
- Ru preferably represents a hydrogen atom or an alkyl group
- the nucleophilic substrate comprises an NH 2 group in which the two hydrogen atoms are capable of reacting
- Protective groups commonly used for its purposes are used, and mention may in particular be made of groups of the BOC (butyloxycarbonyl) or FMOC (trifluoromethyloxycarbonyl) type.
- BOC butyloxycarbonyl
- FMOC trifluoromethyloxycarbonyl
- hydrazones As other types of nucleophilic substrates, mention may be made of hydrazones. They can be represented by the following formula: R
- R ⁇ 2 , R ⁇ 3 , R 14 identical or different, have the meaning given for Ri and R 2 in the formula (la). - At most one of the groups R ⁇ 2 and R ⁇ 3 represents a hydrogen atom.
- R ⁇ 2 and R ⁇ 3 can be linked so as to constitute with the carbon atoms which carry them a carbocyclic or heterocyclic group having from 3 to 20 atoms, saturated, unsaturated, aromatic, monocyclic or polycyclic.
- the hydrazones preferably used correspond to the formula (If) in which R 12 , R 13, which are identical or different, represent an alkyl group of Ci to C15, preferably of Ci to C 10 , a cycloalkyl group of
- C 3 to C 8 preferably C 5 or C 6 , an aryl or arylalkyl group from Ce to C ⁇ 2 .
- groups R 12 and R ⁇ 3 mention may be made of C1 to C alkyl, phenyl, benzyl or naphthyl groups.
- R 12 and R ⁇ 3 can be linked so as to constitute with the carbon atoms which carry them a carbocyclic or heterocyclic group having from 3 to 20 atoms, saturated, unsaturated, or aromatic, monocyclic or polycyclic comprising two or three ortho-condensed rings .
- the number of atoms in each cycle preferably varies between 3 and 6.
- R ⁇ 2 and R ⁇ 3 preferably form a cyclohexane or fluorenone type cycle.
- Ru more particularly represents a hydrogen atom, an alkyl group preferably from C to C 12 ; an alkenyl or alkynyl group, preferably C 2 to C 2 ; a cycloalkyl group, preferably C 3 to C 2 ; an aryl or arylalkyl group preferably in C 2 to C 2 .
- R 14 preferably represents a hydrogen atom or a C1-C alkyl group.
- Nucleophilic substrates quite well suited to the implementation of the method of the invention are heterocyclic derivatives comprising at least one -N-H group.
- - R15 identical or different, represent substituents on the cycle
- - n represents the number of substituents on the cycle.
- the invention applies in particular to monocyclic heterocyclic compounds corresponding to the formula (Ig) in which A symbolizes a heterocycle, saturated or unsaturated, or aromatic comprising in particular 5 or 6 atoms in the ring which can include 1 or 3 heteroatoms such as nitrogen, sulfur and oxygen atoms and at least one of which is a nucleophilic atom such as NH.
- A can also represent a heterocyclic polycyclic compound defined as consisting of at least 2 aromatic or non-aromatic heterocycles containing at least one heteroatom in each cycle and forming between them ortho- or ortho- and per-condensed systems or either a group constituted by at at least one aromatic or non-aromatic carbocycle and at least one aromatic or non-aromatic heterocycle forming between them ortho- or ortho- and peri-condensed systems.
- Carbocycle preferably means a ring of cycloaliphatic or aromatic type having from 3 to 8 carbon atoms, preferably 6.
- carbon atoms of the heterocycle can optionally be substituted, in their entirety or for a part of them only by R 15 groups.
- the number of substituents present on the cycle depends on the number of atoms in the cycle and on the presence or not of unsaturations on the cycle.
- the maximum number of substituents likely to be carried by a cycle is easily determined by a person skilled in the art.
- n is a number less than or equal to 4, preferably equal to 0 or 1.
- the identical group or groups R 15 which are identical or different, preferably represent one of the following groups: . a linear or branched alkyl group of C 1 to C 6 , preferably of C 1 to C 4 carbon atoms, such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, tert-butyl,. a linear or branched alkenyl or alkynyl group of C2 to C 6 , preferably of C 2 to C 4 , such as vinyl, allyl,
- a linear or branched alkoxy or thioether group from C 1 to C 6 , preferably from C 1 to C 4 such as methoxy, ethoxy, propoxy, isopropoxy, butoxy groups, an alkenyloxy group, preferably an allyloxy group or a phenoxy group ,. a cyclohexyl, phenyl or benzyl group,
- a group or function such as: hydroxyl, thiol, carboxylic, ester, amide, formyl, acyl, aroyl, amide, urea, isocyanate, thioisocyanate, nitrile, azide, nitro, sulfone, sulfonic, halogen, pseudohalogen, trifluoromethyl.
- the present invention applies very particularly to the compounds corresponding to formula (Ig) in which the group or groups R 15 more particularly represent an alkyl or alkoxy group.
- the optionally substituted residue A represents one of the following cycles:
- heterocyclic compounds it is preferred to use those which correspond to the formula (Ig) in which A represents a ring such as: imidazole, pyrazole, triazole, pyrazine, oxadiazole, oxazole, tetrazole, indole, pyrrole, phthalazine, pyridazine, oxazolidine .
- nucleophilic compounds are given which are in no way limiting and any type of nucleophilic compound can be envisaged.
- nucleophilic compound comprises a ring, it is possible that there is the presence of substituents.
- R 15 in the formula (Ig) For examples of substituents, reference may be made to the meaning given for R 15 in the formula (Ig).
- the preferred nucleophiles used in the process of the invention are the following: diphenylamine, N-methyl N-phenylamine, benzophenone imine, benzophenone hydrazone, benzophéhone oxime.
- Aromatic compound In accordance with the method of the invention, the creation of a -C-N- or -C-O- bond is carried out by reacting a nitrogenous or oxygenated nucleophilic compound with a compound comprising an unsaturation in the ⁇ position of a leaving group.
- R 0 represents a hydrocarbon group comprising from 2 to 20 carbon atoms and has a double bond or a triple bond situated in position ⁇ of a leaving group Y or a carbocyclic and / or heterocyclic, aromatic, monocyclic or polycyclic group carrying on a cycle of a leaving group.
- Ro represents an aliphatic hydrocarbon group comprising a double bond or a triple bond in position ⁇ of the leaving group or an unsaturated cyclic hydrocarbon group whose unsaturation carries the leaving group
- - Ro represents a carbocyclic and / or heterocyclic, aromatic, monocyclic or polycyclic group
- - Y represents a leaving group, preferably, a halogen atom or a sulphonic ester group of formula - OSO 2 - R e , in which R- is a hydrocarbon group.
- the compound of formula (11) will be designated subsequently by "compound carrying a leaving group”.
- R e is a hydrocarbon group of any kind.
- Y is a leaving group, it is advantageous from an economic point of view for R e to be of a simple nature, and more particularly represents a linear or branched alkyl group having from 1 to 4 carbon atoms, preferably a methyl or ethyl group, but it can also represent, for example, a phenyl or tolyl group or a trifluoromethyl group.
- the preferred group is a triflate group which corresponds to a group R e representing a trifluoromethyl group.
- a bromine or chlorine atom is preferably chosen.
- the compounds of formula (II) targeted very particularly according to the process of the invention can be classified into three groups:
- R 20 - C C - Y (IIa) II.
- R 20 , R 21 and R 22 identical or different, represent a hydrogen atom or a hydrocarbon group having from 1 to 20 carbon atoms which may be a saturated or unsaturated, linear or branched aliphatic group; a saturated, unsaturated or aromatic, monocyclic or polycyclic carbocyclic or heterocyclic group; a chain of aliphatic and / or carbocyclic and / or heterocyclic groups as mentioned above, - Y symbolizes the leaving group as previously defined,
- - D symbolizes the remainder of a cycle forming all or part of a carbocyclic and / or heterocyclic, aromatic, monocyclic or polycyclic system, - R 23 , identical or different, represent substituents on the cycle,
- R 20 preferably represents a linear or branched acyclic aliphatic group preferably having from 1 to 12 carbon atoms, saturated
- the invention does not exclude the presence of another unsaturation on the hydrocarbon chain such as another triple bond or one or more double bonds which may or may not be conjugated.
- the hydrocarbon chain can optionally be interrupted by a heteroatom (for example, oxygen or sulfur) or by a functional group insofar as the latter does not react and mention may in particular be made of a group such as in particular -CO-.
- the hydrocarbon chain may optionally carry one or more substituents insofar as they do not react under the reaction conditions and there may be mentioned in particular a halogen atom, a nitrile group or a trifluoromethyl group.
- acyclic, saturated or unsaturated, linear or branched aliphatic group may optionally carry a cyclic substituent.
- cycle is meant a carbocyclic or heterocyclic, saturated, unsaturated or aromatic, monocyclic or polycyclic ring.
- the acyclic aliphatic group can be linked to the ring by a valential bond, a heteroatom or a functional group such as oxy, carbonyl, carboxy, sulfonyl etc.
- cyclic substituents it is possible to envisage cycloaliphatic, aromatic or heterocyclic, in particular cycloaliphatic substituents comprising 6 carbon atoms in the ring or benzenic, these cyclic substituents themselves being optionally carriers of any substituent insofar as they do not do not interfere with the reactions involved in the process of the invention. Mention may in particular be made of alkyl or alkoxy groups having from 1 to 4 carbon atoms.
- the aralkyl groups having more than 7 to 12 carbon atoms are targeted.
- R 2 o may also represent a carbocyclic group, saturated or unsaturated, preferably having 5 or 6 carbon atoms in the ring, preferably cyclohexyl; a heterocyclic group, saturated or unsaturated, comprising in particular 5 or 6 atoms in the ring including 1 or 2 heteroatoms such as nitrogen, sulfur and oxygen atoms; an aromatic, monocyclic, preferably phenyl or polycyclic carbocylic group, condensed or not, preferably naphthyl.
- R 2 and R 22 they preferably represent a hydrogen atom or an alkyl group having from 1 to 12 carbon atoms, a phenyl group or an aralkyl group having from 7 to 12 carbon atoms, preferably a group benzyl.
- R 20 , R 2 ⁇ and R 22 more particularly represent a hydrogen atom or R 2 o, represents a phenyl group and R 2 ⁇ , R 22 represent an atom of hydrogen.
- R 20l R 21 may also represent a functional group insofar as that group does not interfere with the coupling reaction.
- the functions such as amido, ester, ether, cyano can be cited.
- haloaromatic compounds corresponding to formula (Ile) in which D is the remainder of a cyclic compound, preferably having at least 4 atoms in the ring, preferably 5 or 6, optionally substituted, and representing at least one of the following rings:
- an aromatic, monocyclic or polycyclic carbocycle that is to say a compound constituted by at least 2 aromatic carbocycles and forming between them ortho- or ortho- and pericondensed systems or a compound constituted by at least 2 carbocycles of which only one of them is aromatic and forms between them ortho- or ortho- and pericondensed systems.
- an aromatic, monocyclic heterocycle comprising at least one of the heteroatoms P, O, N and S or a polycyclic aromatic heterocycle, that is to say a compound consisting of at least 2 heterocycles containing at least one heteroatom in each cycle of which at least l one of the two cycles is aromatic and forming between them ortho- or ortho- and pericondensed systems or a compound consisting of at least one carbocycle and at least one heterocycle of which at least one of the cycles is aromatic and forming between them systems ortho- or ortho- and pericondensed.
- the residue D optionally substituted preferably represents the remainder of an aromatic carbocycle such as benzene, of an aromatic bicycle comprising two aromatic carbocycles such as naphthalene; a partially aromatic bicycle comprising two carbocycles, one of which is aromatic, such as tetrahydro-1,2,3,4-naphthalene.
- the invention also envisages the fact that D can represent the remainder of a heterocycle insofar as it is more electrophilic than the compound corresponding to the formula (Ig).
- an aromatic heterocycle such as furan, pyridine
- an aromatic bicycle comprising an aromatic carbocycle and an aromatic heterocycle such as benzofuran, benzopyridine, a partially aromatic bicycle comprising an aromatic carbocycle and a heterocycle such as methylenedioxybenzene
- an aromatic bicycle comprising two aromatic heterocycles such as 1, 8-naphthypyridine
- a partially aromatic bicycle comprising a carbocycle and an aromatic heterocycle such as tetrahydro-5,6,7,8-quinoline
- haloaromatic compound of formula (Ile) in which D represents an aromatic ring, preferably a benzene or naphthalene ring.
- the aromatic compound of formula (Ile) can carry one or more substituents.
- the term “several” is generally understood to mean less than 4 substituents R 23 on an aromatic ring.
- R 23 also represents a saturated, unsaturated or aromatic heterocycle, comprising 5 or 6 atoms and comprising as heteroatom, sulfur, oxygen or nitrogen. Mention may in particular be made of pyrazolyl or imidazolyl groups.
- n is a number less than or equal to 4, preferably equal to 1 or 2.
- the amount of the unsaturated compound carrying a leaving group of formula (II), preferably of formula (IIa) or (IIb) or (Ile), used is generally expressed relative to the amount of the nucleophilic compound close to the stoichiometry.
- the ratio between the number of moles of the unsaturated compound carrying the leaving group and the number of moles of the nucleophilic compound generally varies between 0.9 and 1.5, preferably between 1 and 1.2.
- the nucleophilic compound preferably corresponding to formulas (la) to (Ig) is reacted with a compound carrying a leaving group corresponding to formula (II), preferably of formula (IIa) ) or (11b) or (Ile) in the presence of an effective amount of a palladium-based catalyst and of a ligand as defined according to the invention.
- the catalysts used in the process of the invention are known products.
- Palladium can be provided in the form of a finely divided metal or in the form of an inorganic derivative such as an oxide or a hydroxide. It is possible to use a mineral salt preferably, nitrate, sulfate, oxysulfate, halide, oxyhalide, carbonate or an organic derivative preferably, cyanide, oxalate, acetylacetonate; alcoholate and even more preferably methylate or ethylate; carboxylate and even more preferably acetate. Can also be used complexes, in particular chlorinated or cyanated of Pd metals and / or alkali metals, preferably sodium, potassium or ammonium.
- a mineral salt preferably, nitrate, sulfate, oxysulfate, halide, oxyhalide, carbonate or an organic derivative preferably, cyanide, oxalate, acetylacetonate; alcoholate and even more preferably methylate or ethy
- Examples of compounds which may be used for the preparation of the catalysts of the invention there may be mentioned in particular bromide palladium (11), palladium chloride (II), palladium iodide (II), palladium cyanide (II), hydrated palladium (II) nitrate, palladium (II) oxide, palladium (II) sulfate dihydrate, palladium (II) acetate, palladium propionate (11), palladium butyrate (11), palladium (II) benzoate, palladium (II) acetylacetonate, ammonium tetrachloropalladate (II), potassium hexachloropalladate (IV), palladium (II) tetramine nitrate, palladium (II) dichlorobis (acetonitrile), palladium (II) dichlorobis (benzonitrile), palladium (II) dichloro (1,5-cycl
- the compound in solution can be deposited on a support.
- a metallic form can also be deposited on a support.
- the support is chosen so that it is inert under the reaction conditions.
- an inorganic or organic support such as in particular carbon, activated carbon, carbon black, silica, alumina preferably ⁇ , titanium oxide preferably anatase , zirconium oxide, barium sulfate, natural or synthetic zeolites, for example ⁇ or Y.
- the deposition can be carried out in a conventional manner, for example by adsorption on the support or else according to a sol / gel process in particular in the case of silica, titanium oxide or zirconium.
- the metal is deposited in an amount of 0.5% to 10%, preferably from 1% to 5% of the weight of the catalyst.
- the preferred catalyst is palladium chloride, palladium acetate or palladium deposited on carbon.
- the catalyst can be used in the form of a powder, pellets or granules.
- the amount of compound providing the element Pd used expressed by the molar ratio between the number of moles of said compound and the number of moles of compound of formula (II) generally varies between 0.005 and 1, preferably between 0.01 and 0.1.
- the molar ratio between the number of moles of said compound and the number of moles of compound of formula (II) advantageously varies between 0.005 and 0.5, preferably between 0.005 and 0.01.
- a ligand preferably of organophosphorus type which can be preferably chosen among phosphines or phosphites or phosphonites which complex the metallic element.
- This complex is generally carried out in situ between the compound providing the metallic element Pd and the ligand present.
- the said complex can also be prepared extemporaneously and introduced into the reaction medium. We can then add or not an additional amount of free ligand.
- a first class of ligands are the phosphines.
- aliphatic, cycloaliphatic, arylaliphatic or aromatic phosphines or mixed, aliphatic and / or cycloaliphatic and / or arylaliphatic and / or aromatic phosphines are used.
- phosphines are in particular those which correspond to the general formula (IIIa):
- Z represents a hydrogen atom, one. alkyl group having from 1 to 10 carbon atoms, a halogen atom or a trifluoromethyl group, • X an oxygen or sulfur atom or a linear or branched alkylene group having from 1 to 3 carbon atoms,
- X ′ represents a valential bond, an oxygen, sulfur or silicon atom or a linear or branched alkylene group having from 1 to 3 carbon atoms,
- ⁇ B represents the remainder of a benzene or naphthalene cycle
- W represents a valence bond, a linear or branched alkylene group having from 1 to 3 carbon atoms,
- Rf, R g identical or different, have the meaning given for R a or R, in the formula (IIIa),
- * s is a number equal to 1 to 6, preferably equal to 4.
- C is preferably the remainder of a cyclohexane and R f and R g represent a phenyl group, the number s being equal to 4.
- phosphines examples include tricyclohexylphosphine, trimethylphosphine, triethylphosphine, tri-n-butylphosphine, triisobutylphosphine, tri-te / ⁇ -butylphosphine, tribenzylphosphine, dicyclohexylphenylphosphine, 2- dicyclohexylphosphino-2-methylbiphenyl, triphenylphosphine, dimethylphenylphosphine, diethylphenylphosphine, di-fe / f- butylphenylphosphine, tri (p-tolyl) phosphine, isopropyldiphenylphosphine, trisyl (pentafluine) -tolyl) phosphine, bis-diphenylphosphinomethane, bis-diphenylphosphin
- the amount of ligand expressed by the ratio between the number of moles of ligand (expressed in phosphorus atom) and the number of moles of catalyst (expressed in metallic element) varies between 1 and 5, preferably between 2 and 3.
- a base which function is to trap the leaving group.
- an ammonium hydroxide or of a monovalent metal and / or of a bivalent metal preferably an alkali and / or alkaline-earth metal.
- bases there may be mentioned an alkali metal hydroxide such as sodium, potassium or cesium hydroxide and an alkaline earth metal hydroxide such as magnesium, calcium, barium; a hydroxide of a group IIB metal such as zinc.
- an alkali metal hydroxide such as sodium, potassium or cesium hydroxide and an alkaline earth metal hydroxide such as magnesium, calcium, barium
- an alkaline earth metal hydroxide such as magnesium, calcium, barium
- a hydroxide of a group IIB metal such as zinc.
- the base can be put in a solid form or in an aqueous solution, preferably very concentrated, for example from 10 to 15 mol / liter, preferably around 12 mol / liter.
- the amount of base used is such that the ratio between the number of moles of base and the number of moles of the aromatic compound carrying the leaving group preferably varies between 1 and 1, 4.
- R h represents a hydrocarbon group having from 1 to 24 carbon atoms optionally substituted, which can be an acyclic saturated or unsaturated, linear or branched aliphatic group; a saturated or unsaturated, monocyclic or polycyclic cycloaliphatic group; a saturated or unsaturated, linear or branched aliphatic group, carrying a cyclic substituent.
- the solvent preferably chosen corresponds to formula (VI) in which R h represents an acyclic aliphatic group, saturated or unsaturated, linear or branched.
- R h preferably represents a linear or branched acyclic aliphatic group preferably having from 1 to 12 carbon atoms, saturated
- the invention does not exclude the presence of an unsaturation on the hydrocarbon chain such as a double or triple bond or one or more double bonds which may or may not be conjugated.
- the hydrocarbon chain can optionally be interrupted by a heteroatom (for example, oxygen or sulfur) or by a functional group insofar as the latter does not react and mention may in particular be made of a group such as in particular -CO-.
- a heteroatom for example, oxygen or sulfur
- a functional group insofar as the latter does not react and mention may in particular be made of a group such as in particular -CO-.
- the hydrocarbon chain may optionally carry one of the following substituents: -ORj, -NRjRj in these formulas, the groups Rj, which are identical or different, represent hydrogen or a linear or branched alkyl group having from 1 to 4 carbon atoms preferably a methyl or ethyl group or a phenyl group.
- acyclic, saturated or unsaturated, linear or branched aliphatic group may optionally carry a cyclic substituent.
- cycle is meant a carbocyclic or heterocyclic, saturated, unsaturated or aromatic cycle.
- the acyclic aliphatic group can be linked to the ring by a valential bond, a heteroatom or a functional group such as oxy, carbonyl, carboxy, sulfonyl etc.
- acyclic, saturated or unsaturated, linear or branched aliphatic residue may optionally carry a cyclic substituent.
- cycle is meant a carbocyclic or heterocyclic, saturated, unsaturated or aromatic cycle.
- the acyclic aliphatic residue can be linked to the cycle by a valential bond or by an atom or a functional group for example, -O-.
- cyclic substituents it is possible to envisage cycloaliphatic, aromatic or heterocyclic, in particular cycloaliphatic substituents comprising 6 carbon atoms in the ring or benzenic or heterocyclic 5 or 6 atoms in the ring including one or two hetero atoms such as the nitrogen atoms (not substituted by a hydrogen atom), sulfur and oxygen It is possible that there is a substituent insofar as they do not interfere in the coupling reaction. Mention may in particular be made of alkyl or alkoxy groups having from 1 to 4 carbon atoms.
- R h may also represent a carbocyclic group saturated or comprising 1 or 2 unsaturations in the ring, generally having from 3 to 7 carbon atoms, preferably 6 carbon atoms in the ring; said cycle being able to be substituted by 1 to 5 groups Rc preferably .1 to 3, R 5 having the meanings stated previously.
- groups R h mention may be made of cyclohexyl or cyclohexenyl groups, optionally substituted by linear or branched alkyl groups, having from 1 to 4 carbon atoms.
- the solvents used can be of the mono- or polyalcohol, ether-alcohol or amino-alcohol type or their mixtures.
- primary or tertiary alcohols and secondary alcohols are preferred insofar as they are hindered, that is to say that the two carbon atoms in the ⁇ position are substituted.
- alcohols examples include lower aliphatic alcohols having from 1 to 5 carbon atoms, such as for example, methanol, ethanol, trifluoroethanol, propanol, isopropyl alcohol, butanol, isobutyl alcohol, sec-butyl alcohol, tert-butanol, pentanol, isopentyl alcohol, sec-pentyl alcohol and tert-pentyl alcohol, monoethyl ether of ethylene glycol, as well as aliphatic alcohols higher having at least 6 and up to about 20 carbon atoms, such as, for example, hexanol, heptanol, isoheptyl alcohol, octanol, isooctyl alcohol, 2-ethyl hexanol, l sec-octyl alcohol, tert-octyl alcohol, nonanol, isononyl alcohol, decanol, dodecanol
- Cycloaliphatic alcohols having from 3 to about 20 carbon atoms can be used, such as, for example, cyclopropanol, cyclobutanol, cyclopentanol, cyclohexanol, cycloheptanol, cyclooctanol, cyclododecanol, tripropylcyclohexanol, methylcyclo and methylcycloheptanol, or else an aliphatic alcohol carrying an aromatic group having from 7 to approximately 20 carbon atoms such as for example benzyl alcohol, phenethyl alcohol, phenylpropyl alcohol, phenyloctadecyl alcohol and naphthyldecyl alcohol or an • aliphatic alcohol carrying a heterocyclic group, for example furfurol.
- polyols in particular polyoxyethylene glycols
- polyols such as, for example, ethylene glycol, benzylglycol, diethylene glycol, triethylene glycol, propylene glycol, glycerol.
- polyoxyethylene glycols such as, for example, ethylene glycol, benzylglycol, diethylene glycol, triethylene glycol, propylene glycol, glycerol.
- solvents of the amino alcohol type of N, N-dimethylethanolamine; ether-alcohol type, methoxyethanol, 1-methoxy-propan-2-ol (DOWANOL ®).
- the preferred solvents are tert-butanol, tert-amyl alcohol, methoxyethanol or ethylene glycol.
- the amount of alcohol-type solvent used is determined so that the concentration of the compound carrying the leaving group in the organic solvent is preferably between 0.5 and 2 mol / liter, preferably around 1 mole / liter.
- the alcohol type solvent can be combined with another solvent, preferably of apolar aprotic type.
- aliphatic hydrocarbons there may be mentioned more particularly paraffins such as in particular, hexane, cyclohexane, methylcyclohexane, petroleum ether type petroleum fractions.
- paraffins such as in particular, hexane, cyclohexane, methylcyclohexane, petroleum ether type petroleum fractions.
- aromatic hydrocarbons such as in particular benzene, toluene, xylenes, cumene, mesitylene, petroleum fractions made up of a mixture of alkylbenzenes, in particular cuts of the Solvesso type.
- the amount of co-solvent used can represent from 1 to 50% of the volume of the alcohol-type solvent, preferably from 10 to 20%.
- reaction temperature between the nucleophilic compound and the unsaturated compound carrying the leaving group it is advantageously chosen so that the reagents are in the liquid state.
- the coupling reaction takes place at a temperature which is between 50 ° C and 200 ° C, preferably between 80 ° C and 150 ° C, and even more preferably between 90 ° C and 110 ° C.
- the coupling reaction is generally carried out at atmospheric pressure, but higher pressures of up to 10 bar, for example, can also be used.
- a first embodiment of the reagents consists in loading the compound carrying the leaving group of formula (II), the base, the alcohol-type solvent, optionally the co-solvent.
- Another preferred embodiment is to prepare the suspension of metal hydroxide or ammonium in alcohol by wet grinding.
- the operation can be carried out in any type of mill resistant to corrosion of the base (for example stainless steel) and more particularly in a wet ball mill.
- room temperature generally between 15 and 25 ° C.
- a preferred order consists in loading into the grinder, the alcoholic solvent, preferably tert-amyl alcohol or tert-butanol, then the base, preferably sodium hydroxide, is introduced in solid form (already ground or in the form of pellets). The mixture is ground until a homogeneous suspension is obtained. The suspension collected is used during the coupling reaction.
- the alcoholic solvent preferably tert-amyl alcohol or tert-butanol
- the base preferably sodium hydroxide
- the compound carrying the leaving group of formula (II) and optionally the co-solvent are introduced therein.
- the preformed catalyst is added or not, which means that the metallic element Pd can be provided either already in the form of a complex comprising one of the ligands previously mentioned or else the metallic element Pd and the ligand are introduced separately into the medium.
- the metal complex can be prepared at the start of the reaction from the ligand and the compound providing the metal element Pd.
- the catalytic complex can be obtained for example by heating between
- the reaction medium After introduction of the catalyst, the reaction medium is brought to the chosen reaction temperature.
- the nucleophilic compound preferably corresponding to one of the formulas (la) to (Ig) is added.
- the latter can be added in solid, molten form or in solution in one or the abovementioned solvents, either all at once, or by fractions or continuously.
- the progress of the reaction is monitored by following the disappearance of the compound carrying the leaving group.
- Another embodiment of the process of the invention consists in charging the base suspension, preferably the sodium hydroxide in the alcoholic solvent prepared by wet grinding, to add the compound carrying the leaving group and the nucleophilic compound. Then, the palladium catalyst is added and the reaction medium is brought to the chosen reaction temperature. It is possible to add a surplus of alcoholic solvent or a co-solvent.
- R representing the remainder of the nucleophilic compound, and more particularly an arylated product comprising the remainder of the nucleophilic compound and the remainder of the electrophilic compound which preferably corresponds to the formula (VII) following:
- the organic phase is concentrated and the product is precipitated by adding a co-solvent, in particular methanol, ethanol, isopropanol.
- a co-solvent in particular methanol, ethanol, isopropanol.
- the precipitated product is separated according to conventional solid-liquid separation techniques, in particular by filtration.
- the transformation rate (TT) corresponds to the ratio between the number of transformed substrates and the number of moles of substrate engaged.
- the yield (RR) corresponds to the ratio between the number of moles of product formed and the number of moles of substrate used.
- Selectivity (RT) corresponds to the ratio between the number of moles of product formed and the number of moles of substrate transformed.
- Example 1 448 mg of ground sodium hydroxide (1, 4 eq; 11,) is charged into a 20 ml reactor surmounted by a condenser, magnetic stirring, a temperature probe and placed under an inert atmosphere. 2 mmol), 1.368 g of 4-bromotoluene (1 eq; 8 mmol) and 1.57 g of the hydrazone of benzophenone (1 eq; 8 mmol) in 7 ml of 2-methoxyethanol.
- the catalyst (0.005 eq; 0.5% mol; 1 ml) is transferred to the reactor.
- the catalyst (0.005 eq; 0.5% mol; 1 ml) is transferred to the reactor.
- the catalyst (0.005 eq; 0.5% mol; 1 ml) is transferred to the reactor.
- the catalyst thus prepared is transferred to the reactor.
- the solution is brought to 84 ° C. and the hydrazone of the solid benzophenone (29.4 g ⁇ 4; 1 eq; 0.6 mol) is regularly added in portions for two hours. After twelve hours of stirring, the mixture is hydrolyzed with 100 ml of demineralized water and 150 ml of xylene are added.
- This reactor is connected in cascade with a 6 L reactor surmounted by a condenser, mechanical stirring, a temperature probe and placed under an inert atmosphere in which are loaded 168 g of sodium hydroxide in microbeads (1 , 4 eq; 4.2 mol; diameter 0.7 mm) and 513 g of 4-bromotoluene
- the catalyst thus prepared is transferred to the 6 L reactor.
- reaction mixture is brought to 84 ° C.
- the benzophenone hydrazone in solution is poured into the 6 L reactor in approximately 1 hour 30 minutes.
- the organic phase is separated and concentrated under reduced pressure (about 8 mm of mercury).
- An aqueous solution of sodium hydroxide (11.2 g; 1.4 eq.) Is charged to a 500 ml reactor surmounted by a condenser, mechanical stirring, a temperature probe and placed under an inert atmosphere. ; 0.28 mmol in 20 ml of demineralized water), 4-bromotoluene (34.2 g; 1 eq; 0.2 mol) and benzophenone hydrazone (39.4 g; 1 eq; 0.2 mol) in 200 ml of degassed f-butanol.
- EXAMPLE 9 11.2 g of sodium hydroxide (1.4 eq; 0) are charged into a 500 ml reactor surmounted by a condenser, mechanical stirring, a temperature probe and placed under an inert atmosphere. , 28 mol), 34.2 g of 4-bromotoluene (1 eq; 0.2 mol) and 39.4 g of hydrazone of benzophenone (1 eq; 0.2 mol) in 190 ml of tetf- alcohol degassed amyl. 44.9 mg of palladium acetate (0.1% mol; 0.0002 mol) and 145.6 mg of 2 are charged into a 100 ml schlenk tube fitted with a magnetic stirrer and placed under an inert atmosphere. -dicyclohexylphosphino-2-methylbiphenyl (0.0004 mol) in 20 ml of degassed tetf-amyl alcohol.
- the catalyst thus prepared is transferred to the reactor.
- reaction mixture After one hour of stirring at 103 ° C., the reaction mixture is hydrolyzed with 100 ml of water and 100 ml of xylene are added.
- Example 10 11.2 g of sodium hydroxide (1.4 eq; 0) are charged into a 500 ml reactor surmounted by a condenser, mechanical stirring, a temperature probe and placed under an inert atmosphere. , 28 mol), 34.2 g of 4- bromotoluene (1 eq; 0.2 mol) and 39.4 g of benzophenone hydrazone (1 eq; 0.2 mol) in 190 ml of degassed te / f-amyl alcohol.
- the catalyst thus prepared is transferred to the reactor.
- the catalyst thus prepared is transferred to the reactor. After 48 hours of stirring at 103 ° C., the oph / -tolyl-hydrazone of the benzophenone is obtained with an analytical yield of 48% (internal standard: hexacosane).
- EXAMPLE 12 11.2 g of sodium hydroxide (1, 4 eq; 0,) are charged into a 500 ml reactor surmounted by a condenser, mechanical stirring, a temperature probe and placed under an inert atmosphere. 28mol), 38.29 g of 4-bromochlorobenzene (1 eq; 0.2 mol) and 39.4 g of benzophenone hydrazone (1 eq; 0.2 mol) in 180 ml of degassed fe / f-amyl alcohol .
- reaction mixture After one hour of stirring at 103 ° C, the reaction mixture is hydrolyzed with 100 ml of water and 100 ml of xylene are added. The organic phase is separated and concentrated under reduced pressure
- Crystallization from ethanol makes it possible to isolate ⁇ / -p-chlorophenyl-hydrazone from benzophenone in the form of pale yellow crystals with a yield of 97%.
- the catalyst thus prepared is transferred to the reactor.
- reaction mixture After one hour of stirring at 103 ° C., the reaction mixture is hydrolyzed with 100 ml of water and 100 ml of xylene are added. The organic phase is separated and concentrated under reduced pressure
- Crystallization from ethanol makes it possible to isolate the-/ -phenyl-hydrazone from the benzophenone in the form of pale yellow crystals with a yield of 95%.
- the catalyst thus prepared is transferred to the reactor. After one hour of stirring at 103 ° C, the reaction mixture is hydrolyzed with 100 ml of water and 100 ml of xylene are added.
- the organic phase is separated and concentrated under reduced pressure (about 8 mm of mercury).
- Crystallization from ethanol makes it possible to isolate the ⁇ / -methoxyphenylhydrazone from the benzophenone in the form of pale yellow crystals with a yield of 87%.
- the catalyst (0.005 eq; 0.5% mol; 1 ml) is transferred to the reactor.
- the catalyst thus prepared is transferred to the reactor. After 12 hours of stirring at 103 ° C, the reaction mixture is hydrolyzed with 100 ml of water and the organic phase is separated.
- the catalyst thus prepared is transferred to the reactor.
- the catalyst thus prepared is transferred to the reactor.
- reaction mixture is hydrolyzed with 10 ml of water and the organic phase is separated.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP04742714A EP1622861A1 (fr) | 2003-05-15 | 2004-05-12 | Procede de formation d'une liaison carbone-heteroatome. |
| US10/556,849 US7557248B2 (en) | 2003-05-15 | 2004-05-12 | Method of forming a carbon-heteroatom bond |
| JP2006530346A JP2007502317A (ja) | 2003-05-15 | 2004-05-12 | 炭素−ヘテロ原子結合を形成する方法 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0305826A FR2854890B1 (fr) | 2003-05-15 | 2003-05-15 | Procede de formation d'une liaison carbone-heteroatome |
| FR0305826 | 2003-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2004101496A1 true WO2004101496A1 (fr) | 2004-11-25 |
Family
ID=33306371
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2004/001159 Ceased WO2004101496A1 (fr) | 2003-05-15 | 2004-05-12 | Procede de formation d'une liaison carbone-heteroatome. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7557248B2 (fr) |
| EP (1) | EP1622861A1 (fr) |
| JP (1) | JP2007502317A (fr) |
| CN (1) | CN1805924A (fr) |
| FR (1) | FR2854890B1 (fr) |
| WO (1) | WO2004101496A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113651753A (zh) * | 2021-07-09 | 2021-11-16 | 上海毕得医药科技股份有限公司 | 3-甲氧基喹啉-5胺的合成方法 |
| CN116986584B (zh) * | 2023-09-28 | 2024-01-02 | 河北省科学院能源研究所 | 氮、磷、铁掺杂的碳材料的制备方法及其在橡胶中的应用 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6100398A (en) * | 1998-10-14 | 2000-08-08 | Yale University | Transition metal-catalyzed process for preparing N-aryl amine compounds |
| US6235936B1 (en) * | 1998-02-26 | 2001-05-22 | Massachusetts Institute Of Technology | Metal-catalyzed arylations of hydrazines, hydrazones, and related substrates |
| WO2002085838A1 (fr) * | 2001-04-24 | 2002-10-31 | Massachusetts Institute Of Technology | Formation par catalyse de cuivre de liaisons carbone-heteroatome et carbone-carbone |
-
2003
- 2003-05-15 FR FR0305826A patent/FR2854890B1/fr not_active Expired - Fee Related
-
2004
- 2004-05-12 CN CNA200480016555XA patent/CN1805924A/zh active Pending
- 2004-05-12 US US10/556,849 patent/US7557248B2/en not_active Expired - Fee Related
- 2004-05-12 JP JP2006530346A patent/JP2007502317A/ja not_active Withdrawn
- 2004-05-12 WO PCT/FR2004/001159 patent/WO2004101496A1/fr not_active Ceased
- 2004-05-12 EP EP04742714A patent/EP1622861A1/fr not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6235936B1 (en) * | 1998-02-26 | 2001-05-22 | Massachusetts Institute Of Technology | Metal-catalyzed arylations of hydrazines, hydrazones, and related substrates |
| US6100398A (en) * | 1998-10-14 | 2000-08-08 | Yale University | Transition metal-catalyzed process for preparing N-aryl amine compounds |
| WO2002085838A1 (fr) * | 2001-04-24 | 2002-10-31 | Massachusetts Institute Of Technology | Formation par catalyse de cuivre de liaisons carbone-heteroatome et carbone-carbone |
Non-Patent Citations (2)
| Title |
|---|
| R. MORRIN ACHESON: "The Synthesis of Diethyl p-Tolylsulphonylethynylphosphonate and Related Acetylenes, and their Reactions with Nucleophiles, Pyridinium-1-dicyanomethylides and Dienes", J. CHEM .SOC. PERKIN TRANS. I, 1987, pages 1275 - 1281, XP009025543 * |
| WANG Z ET AL: "Regioselective Synthesis of Aryl Hydrazides by Palladium-Catalyzed Coupling of t-Butylcarbazate with Substituted Aryl Bromides", TETRAHEDRON LETTERS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 40, no. 18, 30 April 1999 (1999-04-30), pages 3543 - 3546, XP004162331, ISSN: 0040-4039 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2854890B1 (fr) | 2006-06-30 |
| JP2007502317A (ja) | 2007-02-08 |
| FR2854890A1 (fr) | 2004-11-19 |
| EP1622861A1 (fr) | 2006-02-08 |
| CN1805924A (zh) | 2006-07-19 |
| US20070243999A1 (en) | 2007-10-18 |
| US7557248B2 (en) | 2009-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR19990087754A (ko) | 니트로비페닐렌의 제조 방법 | |
| CA2487475A1 (fr) | Procede de formation d'une liaison carbone-carbone ou carbone-heteroatome | |
| EP1456151A1 (fr) | Procede de formation d'une liaison carbone-carbone ou carbone-heteroatome. | |
| EP2197829A2 (fr) | Procede de synthese d'arylamines | |
| EP1622861A1 (fr) | Procede de formation d'une liaison carbone-heteroatome. | |
| KR20200098648A (ko) | 트리아제니도 리간드를 갖는 금속 착물 및 기상으로부터 금속을 증착시키기 위한 이의 용도 | |
| EP1255715A1 (fr) | Procede de preparation d'un compose polyaromatique | |
| US20030144534A1 (en) | Process for preparing citalopram | |
| EP1151987B1 (fr) | Derive de binaphtol fluore actif optiquement | |
| EP2197889B1 (fr) | Utilisation de complexes cuivre/phosphines cyclovinyliques comme catalyseurs d'arylation | |
| US20040143139A1 (en) | Process for the production of aminodiphenylamines | |
| WO2002040492A1 (fr) | Diphosphines chirales et leurs complexes metalliques | |
| WO2005095307A1 (fr) | Procede de formation d'une liaison carbone-carbone comprenant une reaction d’un arenediazoether | |
| EP0189694A1 (fr) | Procédé de synthèse d'isocyanates et de dérivés d'isocyanates | |
| EP2527350B1 (fr) | Procédé de préparation de ligands de type phosphines butadiéniques, leurs complexes avec le cuivre, et leurs applications en catalyse | |
| WO2007071841A2 (fr) | Procede de preparation de difluoroethanol | |
| EP1663914A2 (fr) | Procede de formation d une liaison carbone-carbone ou carbon e-heteroatome. | |
| EP0822184A1 (fr) | Procédé de préparation de lactames N-substitués | |
| FR2796951A1 (fr) | Complexes de phosphine/palladium, utiles comme catalyseurs notamment pour l'arylation d'olefines | |
| CN119546578A (zh) | 用于制备5-溴-3,4-二甲基吡啶-2-胺和6-溴-7,8-二甲基-[1,2,4]三唑并[1,5-a]吡啶的方法 | |
| EP1147077A1 (fr) | Procede de preparation d'azoiminoethers et d'esters d'acides azocarboxyliques, et nouveaux esters mixtes d'acides azocarboxyliques | |
| WO2004074229A1 (fr) | Procede d’acylation de composes aromatiques en presence d’un catalyseur recyclable | |
| EP1753707A1 (fr) | Procede de reduction d'un groupe fonctionnel sous forme oxydee | |
| EP1590331A1 (fr) | Procede de preparation d un reactif de type acylimidazolium | |
| JP3240205B2 (ja) | 2−アルコキシカルボニルメチルカルボニルピラジンの製造法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| DPEN | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101) | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 2004742714 Country of ref document: EP Ref document number: 2006530346 Country of ref document: JP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2004816555X Country of ref document: CN |
|
| WWP | Wipo information: published in national office |
Ref document number: 2004742714 Country of ref document: EP |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 10556849 Country of ref document: US |
|
| WWP | Wipo information: published in national office |
Ref document number: 10556849 Country of ref document: US |
|
| WWW | Wipo information: withdrawn in national office |
Ref document number: 2004742714 Country of ref document: EP |



























