WO2024200978A1 - Compositions de polythiols et leur procede de preparation a partir de terpenes ou de derives terpeniques - Google Patents
Compositions de polythiols et leur procede de preparation a partir de terpenes ou de derives terpeniques Download PDFInfo
- Publication number
- WO2024200978A1 WO2024200978A1 PCT/FR2024/050410 FR2024050410W WO2024200978A1 WO 2024200978 A1 WO2024200978 A1 WO 2024200978A1 FR 2024050410 W FR2024050410 W FR 2024050410W WO 2024200978 A1 WO2024200978 A1 WO 2024200978A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- terpene
- polythiol
- farnesene
- derivative
- composition
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/02—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of thiols
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C321/00—Thiols, sulfides, hydropolysulfides or polysulfides
- C07C321/02—Thiols having mercapto groups bound to acyclic carbon atoms
- C07C321/04—Thiols having mercapto groups bound to acyclic carbon atoms of an acyclic saturated carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C327/00—Thiocarboxylic acids
- C07C327/20—Esters of monothiocarboxylic acids
- C07C327/22—Esters of monothiocarboxylic acids having carbon atoms of esterified thiocarboxyl groups bound to hydrogen atoms or to acyclic carbon atoms
Definitions
- TITLE COMPOSITIONS OF POLYTHIOLS AND PROCESS FOR THEIR PREPARATION FROM TERPENES OR TERPENIC DERIVATIVES
- the present invention relates to a process for preparing polythiol compositions using terpenes or terpene derivatives as starting reagents, as well as the polythiol compositions obtainable by this process.
- Polythiols are molecules of great industrial interest. For example, they are used as crosslinking agents, particularly at low temperatures.
- the molecules obtained can contain many unconverted double bonds, which generates stability problems and lowers the overall -SH function rate.
- these polythioester intermediates represent a great technical difficulty for industrial implementation. They are generally very viscous or even solid compounds. They are therefore difficult to handle in order to be used in the deprotection step. They therefore generate many practical problems at the industrial level and are in reality little used.
- these polythioesters are conventionally obtained by reacting a polyene with a thiocarboxylic acid, in particular thioacetic acid.
- a thiocarboxylic acid in particular thioacetic acid.
- this reaction involves the use of a large excess of thiocarboxylic acid, which must be removed before the deprotection step.
- additional steps of evaporation of this excess of thiocarboxylic acid and/or purification of the polythioesters are necessary to carry out the following deprotection step.
- the reagents used in this type of process are generally hydrocarbons derived from petroleum.
- rate of -SH functions is controlled, or even maximized.
- rate of -SH functions is meant the ratio of the mass of all the -SH functions / total mass of the composition.
- the present invention aims to provide an improved process for preparing polythiol compositions from terpenes or terpene derivatives, the industrial implementation of which is simplified.
- the present invention aims to provide an improved process for preparing polythiol compositions, from terpenes or terpene derivatives, by which the level of -SH functions is controlled, or even maximized.
- the present invention also aims to provide improved polythiol compositions, in particular with a controlled, or even maximized, level of -SH functions.
- the present invention also aims to provide polythiol compositions derived from bio-sourced and/or renewable raw materials, namely terpenes and terpene derivatives.
- the present invention aims to provide polythiol compositions useful for the preparation of polymers, preferably thermosetting polymers.
- the present invention meets in whole or in part the above objectives.
- one pot process is meant in particular a process in which the synthesis intermediates (i.e. the polythioesters as according to the invention) are not isolated from the reaction medium to carry out the following deprotection step.
- synthesis intermediates i.e. the polythioesters as according to the invention
- one pot process has many advantages.
- step a) makes it possible to obtain a very good conversion (in particular between 90% and 100% conversion of the terpene or terpene derivative) while avoiding using too much excess of thiocarboxylic acid.
- a significant excess of thiocarboxylic acid is conventionally used in the processes of the prior art, which represents a loss for the process and generates a large quantity of waste to be isolated and treated.
- such an excess is not compatible with a “one pot” process because it must be eliminated before the deprotection step.
- the present invention makes it possible to avoid these drawbacks, which represents an economic but also environmental advantage.
- reaction medium comprising the polythioester intermediates obtained at the end of step a) can be stirred and handled easily. It can in particular be in the form of a liquid or a suspension, slightly viscous or viscous. This avoids operability difficulties at the industrial level.
- reaction medium comprising the polythioester intermediates is also compatible with the deprotection step (hereinafter step b)), which represents a simplification of the process.
- steps a) and b) as according to the invention are carried out in "one pot".
- the process is therefore significantly improved because the intermediate steps of removing excess thiocarboxylic acid and/or purifying polythioester intermediates, such as extraction, recrystallization and/or distillation, are thus avoided.
- terpenes and their derivatives can be particularly useful as starting polyenes leading to polythiols.
- Terpenes and derivatives address many current environmental and climate issues. They are generally bio-sourced, i.e. derived from renewable organic matter (biomass), of plant or animal origin. They also have a wide variety of structures, which allows for great versatility of uses.
- the polythiol compositions that can be obtained by the process according to the invention are new and have a controlled, or even maximized, -SH rate. They are characterized in particular by a high mass ratio as defined below. They are particularly suitable for the preparation of materials such as thermosetting plastics, from resins.
- the present invention makes it possible to obtain materials with superior properties. For example, polymers having a higher Tg, therefore a higher thermal resistance, and/or higher compressive strength properties and/or a larger modulus and elastic range can be obtained.
- the present invention relates to a process for preparing a polythiol comprising the following steps: a) a terpene or a terpene derivative is reacted with a thiocarboxylic acid in the presence of oxygen (O 2 ) and at least one organic solvent, so as to obtain a reaction medium comprising a polythioester and said at least one organic solvent; and b) a step of deprotection of the polythioester obtained in step a) is carried out, so as to obtain a polythiol; in which step a) and step b) are carried out in one-pot synthesis.
- the present invention also relates to a polythiol selected from trithiol derived from dihydrofarnesene, heptathiol derived from isosqualene and tetrathiol derived from camphorene.
- alkyl is meant in particular a saturated, linear, branched or cyclic hydrocarbon radical, comprising from 1 to 10, preferably from 1 to 4, carbon atoms.
- aryl is meant in particular a cyclic (monocyclic, bicyclic or tricyclic) aromatic hydrocarbon radical comprising from 6 to 10 carbon atoms, preferably a phenyl or a naphthyl, more preferably a phenyl.
- aralkyl is meant in particular an alkyl substituted by an aryl, for example benzyl.
- terpenes is understood to mean in particular linear, branched or cyclic hydrocarbon compounds, consisting of repeating isoprene units (C 5 H 8 )n, n being an integer between 2 and 8, preferably between 2 and 6.
- Terpenes are often marketed in the form of compositions comprising different isomers, the proportions of which may vary (in particular depending on their method of production). Such compositions are included within the scope of the present invention and may be used directly as a starting reagent.
- the terpenes are selected from monoterpenes, triterpenes and sesquiterpenes. More particularly, the terpenes are selected from linear or branched terpenes.
- Some of the preferred terpenes include myrcene and farnesene.
- Myrcene is a monoterpene. There are different isomers of myrcene, including ocimene and alloocimene. In particular, alpha-myrcene, beta-myrcene, cis-alpha-ocimene, trans-alpha-ocimene, cis-beta-ocimene, trans-beta-ocimene, 4-cis-6-cis-alloocimene, 4-cis-6-trans-alloocimene, 4-trans-6-cis-alloocimene and 4-trans-6-trans-alloocimene (see [Figure 1]).
- beta-myrcene is used, which is the natural form (CAS No.: 123-35-3), with the following formula: [Chem 1]
- Farnesene is a sesquiterpene. It exists in the form of two isomers: alpha-farnesene (CAS no.: 502-61-4) and beta-farnesene (CAS no.: 502-60-3) with the following formulas:
- Beta-farnesene is preferred, and even more preferably trans-beta-farnesene (CAS No.: 18794-84-8).
- humulene (CAS 6753-98-6), elemene, germacrene, bisabolene, cembrene, casbene, zingiberene, camphorene and their isomers
- alpha-elemene, beta-elemene, gamma-elemene, delta-elemene germacrene A, germacrene B, germacrene C, germacrene D, germacrene E, alpha-bisabolene, beta-bisabolene and gamma-bisabolene.
- hydrophilic derivative of a terpene is understood to mean in particular a compound of empirical formula (C 5 nH 8 n+2z), z being an integer at least equal to 1 and n being as defined above. Preferably, z is between 1 and 10, more preferably between 1 and 3. Among the hydrogenated derivatives, squalene and dihydrofarnesene are particularly preferred.
- Squalene (CAS No.: 11 1 -02-4) has the following formula:
- Dihydrofarnesene has the molecular formula CI 5 H 2 6 . It can exist in the form of different isomers depending on the double bond of hydrogenated farnesene and the alpha or beta isomer of farnesene chosen. Dihydro-beta-farnesene (and all its isomers) is preferred.
- a composition comprising dihydro-farnesene and one or more other partially hydrogenated compounds chosen from: tetrahydro-farnesene (C15H28) and hexahydro-farnesene (C15H30).
- a composition can be used as a starting reagent in the context of the present invention: the dihydro-farnesene which it contains will give the corresponding trithiol according to the process according to the invention.
- such a composition comprises at least 70% by weight of dihydro-farnesene, more preferably at least 80% by weight of dihydro-farnesene, relative to the total weight of the composition.
- said composition comprises at least 85% by weight of dihydro-farnesene, relative to the total weight of unreacted farnesene, all partially hydrogenated compounds from farnesene and farnesane present in the composition.
- this type of composition it is particularly preferred to use the beta isomer of farnesene, to obtain dihydro-beta-farnesene.
- MYRALENE 10TM (CAS no.: 1581740-29-5), a composition obtained from the partial hydrogenation of beta-farnesene and the preparation process for which is given in application WO 2016/064853.
- MYRALENE 10TM mainly comprises dihydro-beta-farnesene. Such a composition is entirely suitable as a starting reagent according to the present invention.
- terpenoids means compounds whose structure is derived from terpenes and optionally comprising one or more heteroatoms (in particular oxygen and/or nitrogen, preferably oxygen) and/or one or more chemical function(s).
- heteroatoms in particular oxygen and/or nitrogen, preferably oxygen
- terpenoids may comprise at least one function chosen from alcohol, ketone, ether, ester or aldehyde functions.
- nH 8 n-2y may have the empirical formula (C 5 nH 8 n-2y), with n as defined above and y being an integer between 1 and 4.
- the terpenoid is selected from the group consisting of: cosmene, beta-carotene, lycopene, farnesol, retinol, retinal, vitamin A, nerolidol, isomyrcenol and ipsdienol.
- Oligomers of terpenes and/or hydrogenated derivatives of terpenes and/or terpenoids are examples of Oligomers of terpenes and/or hydrogenated derivatives of terpenes and/or terpenoids:
- oligomer corresponds in particular to an assembly of 2 to 10 terpenes and/or hydrogenated derivatives of terpenes and/or terpenoids as defined above, identical or different, preferably identical.
- dimers and/or trimers of terpenes and/or terpenoids are used. More preferably, dimers of terpenes are used.
- Mention may in particular be made of the dimer of beta-farnesene, called isosqualene, of empirical formula C 3 oH 4 8, and of the following formula (for example as described in document US 201 1/0287988A1):
- terpenes and terpene derivatives preferably means: terpenes, hydrogenated derivatives of terpenes, terpenoids and oligomers of terpenes and/or hydrogenated derivatives of terpenes and/or terpenoids.
- said terpene or terpene derivative may be chosen from the group consisting of: myrcene, farnesene, humulene, elemene, germacrene, bisabolene, cosmene, cembrene, casbene, zingiberene, beta-carotene, lycopene, camphorene, squalene, isosqualene, dihydro-farnesene, farnesol, retinol, retinal, vitamin A, nerolidol, isomyrcenol and ipsdienol.
- the terpene or terpene derivative is chosen from the group consisting of: myrcene, farnesene, squalene, isosqualene, humulene and dihydro-farnesene.
- Such raw materials are naturally present in plants, in marine species or can be produced by fermentation, by genetically modified organisms or not and possibly using renewable carbon sources. They are also commercially available.
- the company AMYRIS markets trans-beta-farnesene under the name BIOFENE® and the company DRT markets myrcene.
- polythiol refers to the polythiol corresponding to the starting terpene or terpene derivative as defined above.
- polythiol polythiols which are positional isomers of the double bonds.
- the polythiols according to the invention may also be called (x)thiols, with x as defined above.
- polythioester intermediate or “polythioester” is meant the polythioester corresponding to the starting terpene or terpene derivative.
- step a) a terpene or a terpene derivative as defined above is reacted with a thiocarboxylic acid in the presence of oxygen (0 2 ) and at least one organic solvent, so as to obtain a reaction medium comprising a polythioester as defined above and said at least one organic solvent.
- Step a) is carried out in the presence of oxygen (0 2 ), acting here as a reaction initiator.
- Step a) can thus be carried out in the presence of air, depleted air (mixture of oxygen and nitrogen N 2 ) or a mixture of oxygen and another inert gas.
- Oxygen can be introduced in the reaction medium by any technique. Oxygen can also be added throughout step a) or not.
- oxygen is bubbled into the reaction medium, preferably in the form of depleted air.
- the depleted air is passed through a frit or diffuser which is immersed in the reaction medium.
- oxygen can be bubbled into the reaction medium and nitrogen introduced into the gas phase of the reactor (i.e. the reactor headspace).
- the oxygen flow rate may be between 0.01 and 100 nL/h, preferably between 0.05 and 10 nL/h, more preferably between 0.05 and 5 nL/h, in particular between 0.05 and 2 nL/h (normo liters/h).
- Step a) is notably carried out in the absence of any other reaction initiator, and more preferably in the absence of AIBN (azobisisobutyronitrile) and/or in the absence of UV radiation.
- AIBN azobisisobutyronitrile
- Step a) is also carried out in the presence of an organic solvent or a mixture of organic solvents.
- a polar solvent or a mixture of polar solvents is particularly chosen.
- the solvent(s) may be polar protic or polar aprotic.
- Alcohols are preferred, in particular of the following general formula (IV):
- R 4 represents an alkyl as defined above.
- the alcohol is chosen from the group consisting of: methanol, ethanol, isopropanol, n-propanol, n-butanol, butan-2-ol, isobutanol, tert-butanol, more preferably ethanol.
- the solvent is selected from the group consisting of: tetrahydrofuran (THF), 2-methyl-tetrahydrofuran (Me-THF), dioxane, chloroform, acetic acid, methanol, ethanol, isopropanol, n-propanol, n-butanol, butan-2-ol, isobutanol, tert-butanol, dimethoxyethane (also called glyme), diethoxyethane, dibutoxyethane or mixtures thereof, more preferably ethanol.
- THF tetrahydrofuran
- Me-THF 2-methyl-tetrahydrofuran
- dioxane chloroform
- acetic acid methanol
- ethanol isopropanol
- n-propanol n-butanol
- butan-2-ol isobutanol
- tert-butanol dimethoxyethane (also called
- the amount of solvent used is generally chosen according to the desired viscosity of the reaction medium. Total or partial solubilization can be carried out by a person skilled in the art, depending on the desired viscosity of the reaction medium. Preferably, between 1 eq. and 50 molar eq., more preferably between 1 eq. and 20 eq. of solvent(s) are used relative to the terpene or terpene derivative.
- the solvent can be added at the beginning of step a) in whole or in part. It can be added punctually in one go, in several times (semi-continuous) or gradually (continuous), during step a).
- the thiocarboxylic acid is preferably of the following general formula (II):
- Ri represents an alkyl radical, an aryl radical or an aralkyl radical as defined above.
- Ri is selected from methyl, ethyl and benzyl.
- Thioacetic acid in which R 1 is methyl, is particularly preferred according to the invention (hereinafter also referred to as ATA).
- ATA Thioacetic acid
- a polythioacetate is obtained as a polythioester intermediate.
- the thiocarboxylic acid can be generated in situ (see document US 3,270,063, THOMPSON CHEMICAL CO, 1963: “Methods of making primary mercaptans”): the thioacetic acid can be produced from acetic anhydride and hydrogen sulfide, in the presence of a catalyst.
- the thiocarboxylic acid and the solvent(s) are first introduced into the reactor, then the oxygen is introduced, for example by bubbling air.
- the terpene or derivative can then be added to the reaction medium.
- the temperature of step a) may be between 5 and 80 ° C, preferably between 5 and 50 ° C, more particularly between 5 and 25°C, for example between 5 and 10°C.
- Step a) is generally carried out at atmospheric pressure.
- the molar ratio of thiocarboxylic acid/double bond of the terpene or terpene derivative may be between 1 and 20, preferably between 1 and 10, for example between 1 and 5, more preferably between 1 and 3.
- Step a) allows, from a terpene or a terpene derivative, the formation of a polythioester intermediate as defined above.
- the reaction medium obtained at the end of step a) can thus comprise:
- the reaction medium can thus comprise between 10% and 85% by weight of polythioester intermediate, relative to the total reaction medium.
- the reaction medium may comprise between 15% and 90% by weight of solvent(s), relative to the total reaction medium.
- Step b) of deprotection of the polythioester intermediate obtained in step a) makes it possible to obtain a polythiol. It can be carried out by any means known to those skilled in the art. Step a) and step b) being carried out in one-pot synthesis according to the invention, it is understood that the reaction medium comprising the polythioester obtained at the end of step a) is preserved to carry out the deprotection step b). Thus, steps a) and b) are carried out in the presence of the same solvent (or mixture of solvents). It is possible to add said solvent (or said mixture of solvents) during step b).
- the process according to the invention does not comprise a step of separation and/or extraction and/or washing of the (organic) phase which comprises the polythioester between steps a) and b).
- no intermediate step of purification of the polythioester is carried out.
- no recrystallization and/or distillation step of the polythioester is carried out.
- Deprotection b) can be carried out by conventional methods: using a base or an acid, a Dy(OTf) 3 type catalyst (cf. Liang et al., Asian J. Org. Chem. 10.1002/ajoc.201700481) or a quaternary ammonium cyanide salt type compound (cf. US 7,173,156).
- a Dy(OTf) 3 type catalyst cf. Liang et al., Asian J. Org. Chem. 10.1002/ajoc.201700481
- a quaternary ammonium cyanide salt type compound cf. US 7,173,156.
- deprotection b) is a basic deprotection, preferably in the presence of an alcohol as defined above. It is generally carried out by adding an alkali hydroxide, preferably NaOH or KOH. The addition can be carried out dropwise.
- an alkali hydroxide preferably NaOH or KOH. The addition can be carried out dropwise.
- Deprotection step b) may also be an acid deprotection, preferably in the presence of an alcohol as defined above. It may be carried out with hydrochloric acid, methanesulfonic acid or anhydrous methanesulfonic acid. When the deprotection is acidic, it is preferred to use an alcohol as defined above as solvent.
- the sulfonic acid is preferably an organosulfonic acid, optionally anhydrous.
- the sulfonic acid can be of the following general formula (III): R 2 -SO 3 H (III), where R 2 represents:
- alkyl radical preferably as defined above, optionally substituted, in whole or in part, by one or more identical or different halogen atoms, or
- aryl radical preferably as defined above, optionally substituted by a saturated, linear or branched hydrocarbon chain, comprising from 1 to 4 carbon atoms.
- the halogen atom may be chosen from fluorine, chlorine and bromine.
- said alkyl may be perhalogenated, more particularly perfluorinated.
- the sulfonic acid is an alkanesulfonic acid, optionally anhydrous (in the above formula, R 2 is an alkyl).
- the sulfonic acids (as well as their anhydrous forms) may be chosen from: methanesulfonic acid, ethanesulfonic acid, n-propanesulfonic acid, /so-propanesulfonic acid, n-butanesulfonic acid, /so-butanesulfonic acid, sec-butanesulfonic acid, te/i-butanesulfonic acid, trifluoromethanesulfonic acid, para-toluenesulfonic acid, benzenesulfonic acid and mixtures of two or more of them in any proportions.
- the sulfonic acid used in the context of the present invention is methanesulfonic acid (MSA) or anhydrous methanesulfonic acid (AMSA).
- Said sulfonic acid may be supported or unsupported. Preferably, it is unsupported.
- sulfonated resins of the styrene-divinylbenzene copolymer type for example Amberlyst® 15 resin, or National®.
- a polythioester for example, between 3 and 60 eq., preferably between 3 and 20 eq. (molar equivalent) of alcohol are used for a polythioester.
- Deprotection step b) can be carried out at a temperature between 10 and 100°C, preferably between 25 and 80°C, more preferably between 40 and 80°C. It is generally carried out at atmospheric pressure.
- Steps a) and b) can be carried out in the same reactor.
- a batch reactor can be used.
- Subsequent conventional recovery and/or purification steps of the polythiol recovered at the end of step b) can be carried out, depending on the degree of purity sought.
- the reaction medium when deprotection is carried out by the addition of a base, the reaction medium can then be acidified and vice versa: when deprotection is carried out by the addition of an acid, the reaction medium can be basified.
- the resulting organic phase comprising the different thiols (notably polythiol and (x-l)thiols) can then be extracted and possibly concentrated.
- the polythiol obtained may be in the form of a polythiol composition as mentioned below.
- the term “(x-1)thiol” refers to a thiol corresponding to the starting terpene or terpene derivative and comprising (x-1) -SH functions.
- step b it is also possible that the deprotection is not complete.
- Such a composition may optionally include other by-products or impurities (e.g. monothiols).
- composition A comprises at least 50% by weight, preferably at least 60% by weight, for example at least 70% by weight, more preferably at least 80% by weight, more preferably at least 90% by weight, for example at least 95% by weight of said polythiol, relative to the total weight of composition A.
- said composition A comprises less than 40% by weight, preferably less than 30% by weight, more preferably less than 25% by weight of said (x-1)thiol(s), relative to the total weight of said composition A.
- the mass ratio of composition A is between 1:1 and
- Said mass ratio is the mass ratio: [polythiol corresponding to said terpene or terpene derivative comprising x -SH functions] / [thiol(s) corresponding to said terpene or terpene derivative comprising (x-1) -SH functions],
- said composition A is obtained from a terpene or a terpene derivative chosen from myrcene, farnesene, squalene, isosqualene, humulene and dihydro-farnesene.
- the present invention also relates to trithiol derived from dihydrofarnesene, heptathiol derived from isosqualene and tetrathiol derived from camphorene (i.e. trithiol corresponding to dihydrofarnesene, heptathiol corresponding to isosqualene and tetrathiol corresponding to camphorene).
- said trithiol is the trithiol of dihydro-beta-farnesene.
- the trithiol of dihydro-farnesene may in particular be in the form of one of its following positional isomers: [Chem 10]
- Said trithiol of dihydro-farnesene can be obtained from a starting composition comprising at least 70% by weight of dihydro-farnesene, more preferably at least 80% by weight of dihydro-farnesene, relative to the total weight of the composition.
- said composition comprises at least 85% by weight of dihydro-farnesene, relative to the total weight of farnesene, of all the partially hydrogenated compounds resulting from the hydrogenation of farnesene and farnesane present in said composition.
- composition is a dihydro-beta-farnesene trithiol composition obtained from MYRALENE 10TM.
- the heptathiol of isosqualene can notably be in the form of one of its following positional isomers: [Chem 14]
- the present invention also relates to polythiols derived from beta-carotene, lycopene, farnesol, retinol, retinal, vitamin A, nerolidol, isomyrcenol and ipsdienol.
- the present invention also relates to the compositions as defined above and capable of being obtained, obtained or directly obtained by the process according to the invention.
- the polythiols as defined above which may be capable of being obtained, obtained or directly obtained by the process according to the invention.
- MYRALENE 10TM 40g (0.19 moles) of MYRALENE 10TM are then added dropwise via a peristaltic pump for approximately 27 min. Once the addition is complete, 35.7g (0.77 moles) of EtOH are added to the reaction medium.
- reaction medium is then cooled to 20°C, 117 g (0.64 moles) of 20% HCl (previously degassed with nitrogen) are then added dropwise via a peristaltic pump into the reaction medium.
- the trithiol phase is withdrawn.
- the aqueous phase is extracted three times with 16.5 g (0.19 moles) of dichloromethane.
- a composition comprising 82.29% by weight of the trithiol of dihydro-beta-farnesene and 9.71% by weight of the dithiol of dihydro-beta-farnesene is obtained (relative to the total weight of the composition). , .. . polythiol
- the air supply is cut off.
- reaction medium is then cooled to 20 °C, 154.6 g (0.85 moles) of 20% HCl (previously degassed with nitrogen) are then added dropwise via a peristaltic pump into the reaction medium.
- the trithiol phase is withdrawn.
- the aqueous phase is extracted three times with 21.8 g (0.26 moles) of dichloromethane.
- a composition comprising 50.56% by weight of myrcene trithiol and 23.6% by weight of myrcene dithiol is obtained (relative to the total weight of the composition).
- the poly mass ratio ttll ° l is td e 50.56:23.6, or 2.1:1 3: Tetrathiol obtained from farnesene, process according to the invention
- the reaction medium is kept stirring at 5°C overnight.
- the air supply is cut off.
- reaction medium is then degassed with nitrogen for 1 h and then cooled to approximately 10 °C and 187.2 g (2.15 moles) of a previously degassed 46% sodium hydroxide solution is added over 35 min via a dropping funnel.
- the reaction medium is left stirring under nitrogen at 25 °C for 19 h.
- reaction medium is then cooled to 20°C, 294.4 g (1.61 moles) of 20% HCl (previously degassed with nitrogen) are then added dropwise via a peristaltic pump into the reaction medium.
- the trithiol phase is withdrawn.
- the aqueous phase is extracted three times with 41.6 g (0.49 moles) of dichloromethane.
- a composition comprising 61.24% by weight of farnesene tetrathiol and 25.77% by weight of farnesene trithiol is obtained (relative to the total weight of the composition).
- the mass ratio of poly to 100 ° is 51.24:25.77 or 2.4:1.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2025557039A JP2026511803A (ja) | 2023-03-31 | 2024-03-29 | ポリチオール組成物及びテルペン又はテルペン誘導体からのその調製プロセス |
| CN202480021789.0A CN120882697A (zh) | 2023-03-31 | 2024-03-29 | 多硫醇组合物及其由萜烯或萜烯衍生物制备的方法 |
| KR1020257035790A KR20250165413A (ko) | 2023-03-31 | 2024-03-29 | 테르펜 또는 테르펜 유도체로부터의 폴리티올 조성물 및 이들의 제조 방법 |
| EP24721719.3A EP4688735A1 (fr) | 2023-03-31 | 2024-03-29 | Compositions de polythiols et leur procede de preparation a partir de terpenes ou de derives terpeniques |
| MX2025011352A MX2025011352A (es) | 2023-03-31 | 2025-09-25 | Composiciones de politioles y su proceso de preparacion a partir de terpenos o derivados de terpenos |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR2303197A FR3147276B1 (fr) | 2023-03-31 | 2023-03-31 | Compositions de polythiols et leur procede de preparation a partir de terpenes ou de derives terpeniques |
| FRFR2303197 | 2023-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024200978A1 true WO2024200978A1 (fr) | 2024-10-03 |
Family
ID=87747856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2024/050410 Ceased WO2024200978A1 (fr) | 2023-03-31 | 2024-03-29 | Compositions de polythiols et leur procede de preparation a partir de terpenes ou de derives terpeniques |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP4688735A1 (fr) |
| JP (1) | JP2026511803A (fr) |
| KR (1) | KR20250165413A (fr) |
| CN (1) | CN120882697A (fr) |
| FR (1) | FR3147276B1 (fr) |
| MX (1) | MX2025011352A (fr) |
| TW (1) | TW202506636A (fr) |
| WO (1) | WO2024200978A1 (fr) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3270063A (en) | 1963-05-02 | 1966-08-30 | Thompson Chemical Company | Methods of making primary mercaptans |
| WO2001077359A2 (fr) * | 2000-04-06 | 2001-10-18 | Societe Des Produits Nestle S.A. | Preparation de thiols et de derives par bioconversion |
| US20050153231A1 (en) | 2002-02-28 | 2005-07-14 | Showa Denko K.K. | Thiol compound, photopolymerization initiator composition and photosensitive composition |
| US7173156B1 (en) | 2005-11-02 | 2007-02-06 | The United States Of America As Represented By The Secretary Of The Navy | Thioacetate deprotection |
| US20110287988A1 (en) | 2010-05-21 | 2011-11-24 | Karl Fisher | Squalane and isosqualane compositions and methods for preparing the same |
| WO2012018757A1 (fr) | 2010-08-03 | 2012-02-09 | Chevron Phillips Chemical Company Lp | Procédé visant à mercaptaniser des hydrocarbures oléfiniques et compositions ainsi obtenues |
| WO2016064853A1 (fr) | 2014-10-20 | 2016-04-28 | Novvi Llc | Hydrogénation partielle sélective de bêta-farnesène |
-
2023
- 2023-03-31 FR FR2303197A patent/FR3147276B1/fr active Active
-
2024
- 2024-03-29 WO PCT/FR2024/050410 patent/WO2024200978A1/fr not_active Ceased
- 2024-03-29 JP JP2025557039A patent/JP2026511803A/ja active Pending
- 2024-03-29 CN CN202480021789.0A patent/CN120882697A/zh active Pending
- 2024-03-29 TW TW113112050A patent/TW202506636A/zh unknown
- 2024-03-29 KR KR1020257035790A patent/KR20250165413A/ko active Pending
- 2024-03-29 EP EP24721719.3A patent/EP4688735A1/fr active Pending
-
2025
- 2025-09-25 MX MX2025011352A patent/MX2025011352A/es unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3270063A (en) | 1963-05-02 | 1966-08-30 | Thompson Chemical Company | Methods of making primary mercaptans |
| WO2001077359A2 (fr) * | 2000-04-06 | 2001-10-18 | Societe Des Produits Nestle S.A. | Preparation de thiols et de derives par bioconversion |
| US20050153231A1 (en) | 2002-02-28 | 2005-07-14 | Showa Denko K.K. | Thiol compound, photopolymerization initiator composition and photosensitive composition |
| US7173156B1 (en) | 2005-11-02 | 2007-02-06 | The United States Of America As Represented By The Secretary Of The Navy | Thioacetate deprotection |
| US20110287988A1 (en) | 2010-05-21 | 2011-11-24 | Karl Fisher | Squalane and isosqualane compositions and methods for preparing the same |
| WO2012018757A1 (fr) | 2010-08-03 | 2012-02-09 | Chevron Phillips Chemical Company Lp | Procédé visant à mercaptaniser des hydrocarbures oléfiniques et compositions ainsi obtenues |
| WO2016064853A1 (fr) | 2014-10-20 | 2016-04-28 | Novvi Llc | Hydrogénation partielle sélective de bêta-farnesène |
Non-Patent Citations (5)
| Title |
|---|
| ACOSTA ORTIZ RICARDO ET AL: "Synthesis of Novel Hexathiolated Squalene and Its Thiol-Ene Photopolymerization with Unsaturated Monomers", GREEN AND SUSTAINABLE CHEMISTRY : GSC, vol. 02, no. 02, 1 January 2012 (2012-01-01), US, pages 62 - 70, XP093099504, ISSN: 2160-6951, DOI: 10.4236/gsc.2012.22011 * |
| BEL-RHLID RACHID ET AL: "Chemo-enzymatic synthesis of [alpha]-terpineol thioacetate and thiol derivatives and their use as flavouring compounds", YEAST (CHICHESTER, ENGLAND), 1 January 2015 (2015-01-01), England, pages 115 - 122, XP093100216, Retrieved from the Internet <URL:https://onlinelibrary.wiley.com/doi/10.1002/yea.3056> [retrieved on 20231110], DOI: 10.1002/yea.3056 * |
| CUNNEEN J. I.: "35. The addition of thio-compounds to olefins. Part II. Reactions of thiolacetic and mono-, di-, and tri-chlorothiolacetic acids", JOURNAL OF THE CHEMICAL SOCIETY, 1 January 1947 (1947-01-01), pages 134, XP093100404, ISSN: 0368-1769, DOI: 10.1039/jr9470000134 * |
| GUZMÃ N DAILYN ET AL: "Novel thermal curing of cycloaliphatic resins by thiol-epoxy click process with several multifunctional thiols", vol. 66, no. 12, 1 December 2017 (2017-12-01), pages 1697 - 1707, XP009504840, ISSN: 0007-1641, Retrieved from the Internet <URL:https://onlinelibrary.wiley.com/doi/10.1002/pi.5336/full> [retrieved on 20231109], DOI: 10.1002/PI.5336 * |
| LIANG ET AL., ASIAN J. ORG. CHEM., no. 1581740-29-5 |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3147276B1 (fr) | 2025-11-21 |
| MX2025011352A (es) | 2025-11-03 |
| JP2026511803A (ja) | 2026-04-14 |
| TW202506636A (zh) | 2025-02-16 |
| CN120882697A (zh) | 2025-10-31 |
| KR20250165413A (ko) | 2025-11-25 |
| FR3147276A1 (fr) | 2024-10-04 |
| EP4688735A1 (fr) | 2026-02-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1332712A (zh) | 腰果酚的衍生物及其制备方法 | |
| BE1010101A5 (fr) | Procede de production de composes polysulfures organiques. | |
| EP0043620B1 (fr) | Procédé pour la fabrication de l'acide bêta-hydroxybutyrique | |
| EP1234811B1 (fr) | Procédé de synthèse de mono-éthers d'aryle et d'alkyle | |
| EP4688735A1 (fr) | Compositions de polythiols et leur procede de preparation a partir de terpenes ou de derives terpeniques | |
| EP0168293B1 (fr) | Procédé de préparation d'anhydride trifluoracétique | |
| FR3023556A1 (fr) | Procede de preparation de composes aromatiques a partir de la lignine | |
| EP2621896B1 (fr) | Procédé de préparation de disulfure de diméthyle | |
| FR2948659A1 (fr) | Procede de preparation des esters de l'acide difluoroacetique | |
| EP0274934B1 (fr) | Procédé de préparation de mercaptoalcools | |
| FR3147277A1 (fr) | Compositions de polythiols et leur procede de preparation | |
| EP4041708A1 (fr) | Procede de preparation de mercaptans par sulfhydrolyse de sulfures | |
| CA1128955A (fr) | Procede pour la preparation d'esters | |
| WO2018146415A1 (fr) | Procédé de préparation de polythiols | |
| WO1997030959A1 (fr) | Synthese de composes organiques iodo-fluores | |
| EP0382617B1 (fr) | Synthèse d'alcanedithiols vicinaux | |
| FR3117115A1 (fr) | Procede de synthese de mercaptans fonctionnalises sous pression d’h2s | |
| EP0430806B1 (fr) | Procédé de préparation d'halogénoacétals à partir d'énamines | |
| FR3112549A1 (fr) | Procede ameliore de synthese de mercaptans fonctionnalises | |
| EP0127536A1 (fr) | Procédé de préparation de composés carbonyles alpha-delta-diéthyléniques | |
| BE830446A (fr) | Procede de semihydrogenation du citral et de ses homologues en citronellal et homologues du citronellal | |
| FR2824555A1 (fr) | Procede de synthese de para-alcoxybenzaldehydes | |
| FR2700335A1 (fr) | Procédé de préparation du méthacrylate de chlorohydroxypropyle en présence d'un catalyseur dianine. | |
| BE886595A (fr) | Procede de production de dithiodialcanoates de dialkyle | |
| EP0430807A1 (fr) | Procédé de préparation d'halogénoacétals à partir d'énamines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 24721719 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202480021789.0 Country of ref document: CN Ref document number: MX/A/2025/011352 Country of ref document: MX |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 202517092516 Country of ref document: IN |
|
| ENP | Entry into the national phase |
Ref document number: 2025557039 Country of ref document: JP Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2025557039 Country of ref document: JP |
|
| REG | Reference to national code |
Ref country code: BR Ref legal event code: B01A Ref document number: 112025019706 Country of ref document: BR |
|
| WWP | Wipo information: published in national office |
Ref document number: 202517092516 Country of ref document: IN |
|
| ENP | Entry into the national phase |
Ref document number: 1020257035790 Country of ref document: KR Free format text: ST27 STATUS EVENT CODE: A-0-1-A10-A15-NAP-PA0105 (AS PROVIDED BY THE NATIONAL OFFICE) |
|
| WWE | Wipo information: entry into national phase |
Ref document number: KR1020257035790 Country of ref document: KR |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2024721719 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 202480021789.0 Country of ref document: CN |
|
| WWP | Wipo information: published in national office |
Ref document number: MX/A/2025/011352 Country of ref document: MX |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| ENP | Entry into the national phase |
Ref document number: 2024721719 Country of ref document: EP Effective date: 20251031 |
|
| ENP | Entry into the national phase |
Ref document number: 2024721719 Country of ref document: EP Effective date: 20251031 |
|
| ENP | Entry into the national phase |
Ref document number: 2024721719 Country of ref document: EP Effective date: 20251031 |
|
| ENP | Entry into the national phase |
Ref document number: 2024721719 Country of ref document: EP Effective date: 20251031 |
|
| ENP | Entry into the national phase |
Ref document number: 2024721719 Country of ref document: EP Effective date: 20251031 |
|
| ENP | Entry into the national phase |
Ref document number: 2024721719 Country of ref document: EP Effective date: 20251031 |
|
| ENP | Entry into the national phase |
Ref document number: 2024721719 Country of ref document: EP Effective date: 20251031 |
|
| ENP | Entry into the national phase |
Ref document number: 2024721719 Country of ref document: EP Effective date: 20251031 |
|
| WWP | Wipo information: published in national office |
Ref document number: 2024721719 Country of ref document: EP |















