EP0973708A1 - Procede ameliore de production de cyclopropylacetylene - Google Patents

Procede ameliore de production de cyclopropylacetylene

Info

Publication number
EP0973708A1
EP0973708A1 EP98910701A EP98910701A EP0973708A1 EP 0973708 A1 EP0973708 A1 EP 0973708A1 EP 98910701 A EP98910701 A EP 98910701A EP 98910701 A EP98910701 A EP 98910701A EP 0973708 A1 EP0973708 A1 EP 0973708A1
Authority
EP
European Patent Office
Prior art keywords
triorganophosphane
oxide
phosphorane
general formula
methyl ketone
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.)
Withdrawn
Application number
EP98910701A
Other languages
German (de)
English (en)
Inventor
Michael Henningsen
Armin Stamm
Martin Fischer
Wolfgang Siegel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE19709401A external-priority patent/DE19709401A1/de
Priority claimed from DE1997132292 external-priority patent/DE19732292A1/de
Application filed by BASF SE filed Critical BASF SE
Publication of EP0973708A1 publication Critical patent/EP0973708A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/28—Phosphorus compounds with one or more P—C bonds
    • C07F9/535—Organo-phosphoranes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C1/00—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon
    • C07C1/26—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only halogen atoms as hetero-atoms
    • C07C1/30—Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only halogen atoms as hetero-atoms by splitting-off the elements of hydrogen halide from a single molecule
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/18—Preparation of halogenated hydrocarbons by replacement by halogens of oxygen atoms of carbonyl groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/02—Systems containing only non-condensed rings with a three-membered ring

Definitions

  • the present invention relates to an improved process for the halogenation of cyclopropyl methyl ketone with dihalotriorganophosphoranes, the halogenation product obtained by this process and a process for the preparation of cyclopropylacetylene by dehydrohalogenation of these halogenation products.
  • Cyclopropylacetylene is known as an intermediate for an inhibitor of HIV reserve transcriptase from PCT / O 96/22955.
  • the HIV retrovirus Human Immuno Deficiency Virus
  • AIDS Acquired Immune Deficiency Syndrome
  • the viral HIV reverse transcriptase is a key enzyme for the replication of the HIV retrovirus in the host organism.
  • a process for the preparation of cyclopropylacetylene by cyclization of 5-halo-1-pentyne with strong bases such as butyllithium in an aprotic solvent and subsequent quenching of the lithium salt obtained with a proton source such as ammonium chloride is known from PCT / WO 96/22955.
  • the process described in SU 555 079, SU 578 293 and SU 572 445 uses Chlorination in the presence of an organic base, such as pyridine or N, N-diethylaniline.
  • US Pat. No. 3,715,407 discloses a process for the chlorination of ketones with molar excesses, based on the ketone, on dichlorotriorganophosphorane prepared in situ from triorganophosphane oxide and phosgene.
  • the process has the disadvantage that the triorganophosphane oxide must be used in a large excess based on the ketone. Due to the poor solubility of the triorganophosphane oxide, large amounts of solvent are required for the reaction and a continuous procedure can only be achieved with considerable technical difficulties.
  • R 3 PHal 2 (I) in which the radicals R can be the same or different and a saturated or unsaturated aliphatic Ci to C 0 hydrocarbon radical, a phenyl or Ci to C-alkylphenyl radical, which may be by one to two fluorine, chlorine and / or nitro groups, preferably in the ortho and / or para position to the phosphorus, can be substituted, 4-chloro, 4-fluorine or 4-nitro-substituted phenyl radicals being particularly preferred - P, phosphorus and shark means chlorine, bromine or iodine, found at 80 to 130 ° C, in which the dihalotriorganophosphorane of the general formula (I) in situ from triorganophosphane oxide or triorganophosphane sulfate of the general formula II
  • R 3 PA (II), wherein R has the meaning given under formula I and A is oxygen or sulfur, is prepared with a halogenating reagent which is characterized in that the triorganophosphane oxide or triorganophosphane sulfide is used in catalytic amounts.
  • dichlorotriorganophosphoranes of the general formula I are preferably prepared in situ, dichlorotriphenylphosphorane, a dichlorotri- (C 6 -C 6 -alkyl) phosphorane, dichlorotri- (4-chlorophenyl) phosphorane, dichloro tri- (4-fluorophenyl) phosphorane, dichlorotri- (4-nitrophenyl) phosphorane or a mixture thereof are particularly preferred.
  • Halogenating reagents suitable for use in the process according to the invention are known per se and are described, for example, in Houben-Weyl, Methods of Organic Chemistry, Volume E2, 872 (1982).
  • a chlorinating agent such as chlorine, oxalyl chloride, thionyl chloride, phosgene, diphosgene or triphosgene, of which phosgene is preferred, is preferably used in the process according to the invention.
  • the halogenation of the cyclopropylmethyl ketone is preferably carried out at a temperature of 90 to 120 ° C, particularly preferably 90 to 100 ° C, and a pressure of 0.8 to 1.5 bar, preferably at normal pressure, the halogenating agent in one Molar ratio of 0.5 to 2, preferably 0.5 to 1.0 and the triorganophosphane oxide or triorganophosphane sulfide in aquimolar amounts, preferably in catalytic amounts of 0.5 to 5 mol%, particularly preferably 1.0 to 2.5 mol %, each based on the cyclopropyl methyl ketone, are used.
  • halogenating agent it is particularly advisable to present the halogenating agent and then to add a solution of the triorganophosphan oxide or triorganophosphane sulfide in cyclopropyl methyl ketone. It is also possible to provide only a portion of the total amount of the halogenating agent and to add the remaining portion after the addition of the triorganophosphane oxide or triorganophosphane sulfide solution in cyclopropyl methyl ketone has ended. This procedure is particularly recommended when using phosgene as a halogenating agent.
  • the process according to the invention can be operated batchwise or continuously, the continuous mode of operation being preferred for economic reasons.
  • Triorganophosphane oxides can be prepared, for example, by the methods described in Houben-Weyl, Methods of Organic Chemistry, Volume E2 (1982), page 2.
  • a mixture of the C 6 to Cs trialkylphosphine oxides is sold, for example, under the trade name Cyanex® 923 by Cytec Industries Inc., NJ, USA.
  • Triorganophosphane sulfides can be prepared, for example, by the process described in Houben-Weyl, Methods of Organic Chemistry, Volume E2 (1982), page 79.
  • the process according to the invention for the halogenation of cyclopropyl methyl ketone is preferably carried out without solvent.
  • the process according to the invention can also be carried out in an inert solvent, preferably with a boiling point above 110 ° C., in which the dihalotriorganophosphorane is soluble.
  • Suitable solvents are, for example, halogenated aromatic hydrocarbons such as chlorobenzene, 1-methylnaphthalene, xylene or mesitylene, of which xylene or mesitylene are preferred.
  • triorganophosphane oxides or triorganophosphane sulfides of the formula II are formed as by-products, from which the halogenation product is separated off by distillation.
  • the process according to the invention for the halogenation of cyclopropyl ketone has the advantage that the catalytic amounts of triorganophosphane oxide or triorganophosphane sulfide used and the reaction products in the reaction mixture are completely soluble, as a result of which deposits on system parts and, in particular, valve blockages are avoided. From an economic point of view, the method according to the invention can advantageously be operated continuously and without solvents.
  • the present application therefore also relates to the halogenation product of cyclopropyl methyl ketone, which is obtained by the process according to the invention, in particular after its separation from the triorganophosphane oxides or sulfides formed by distillation.
  • a process for the preparation of cyclopropylacetylene was furthermore found, which is characterized in that a halogenation product obtainable by the process according to the invention for the halogenation of cyclopropyl methyl ketone at a
  • Suitable strong bases for the preparation of cyclopropylacetylene for example sodium amide
  • alkali metal alcoholates such as, for example, sodium ethanolate, potassium ethanolate, sodium methoxide, potassium methanolate, potassium tert-butylate, sodium hydroxide and potassium hydroxide
  • alkali metal salts of glycol ethers such as, for example, potassium butyl triglycolate, of which potassium is preferred .
  • the strong base is used in a suitable solvent, for example sodium amide in ammonia, sodium ethanolate or potassium ethanolate in ethanol, potassium tertiarbutoxide in dimethyl sulfoxide and potassium hydroxide or potassium methoxide in glycol ethers, for example triethylene glycol dimethyl ether, ethoxyethanol, methyltriglycol, butyltriglycol, in the process according to the invention , the use of potassium hydroxide, potassium methoxide or sodium methoxide in glycol ethers being preferred, and the use of potassium methoxide in glycol ethers being particularly preferred.
  • a suitable solvent for example sodium amide in ammonia, sodium ethanolate or potassium ethanolate in ethanol, potassium tertiarbutoxide in dimethyl sulfoxide and potassium hydroxide or potassium methoxide in glycol ethers, for example triethylene glycol dimethyl ether, ethoxyethanol, methyltriglycol, butyltriglycol, in
  • reaction mixture of the process according to the invention for the preparation of cyclopropylacetylene can contain a further inert solvent with a boiling point below 170 ° C., for example toluene.
  • the strong base is used in a weight ratio of 10: 1 to 0.5: 1 to the halogenation product of cyclopropylmethyl ketone.
  • triphenylphosphine oxide 7 g were dissolved in 42 g of 1-methylnaphthalene and at 100 to 110 ° C., phosgene was gassed in until the reflux of phosgene prevailed at the Kuhler. 42 g of cyclopropyl methyl ketone were added dropwise over the course of 1 h, and further phosgene (a total of 54 g) was introduced at the same time. After the addition had ended, the mixture was left to after-react at 110 ° C. for 1 h and then excess phosgene was driven off completely with nitrogen.
  • a halogenation product of 80 g of cyclopropyl vinyl chloride and 44.5 g of dichlorocyclopropylethane was obtained by distillation at a transition temperature of 94 to 95 ° C. and a pressure of 1013 mbar.
  • triphenylphosphine oxide was dissolved in 336 g cyclopropyl methyl ketone.
  • 89 g of phosgene were introduced at reflux at 105 ° C. in the course of 2 h.
  • 291 g of the solution of triphenylphosphine oxide in cyclopropyl methyl ketone and 350 g were then added within 12.5 at 95 to 100 ° C.
  • the raw Product (522 g), the composition of which was determined by gas chromatography, contained 160 g of cyclopropyl methyl chloride and 183 g of dichlorocyclopropylethane.
  • triphenylphosphine oxide 7 g was dissolved in 84 g of cyclopropyl methyl ketone.
  • 10 ml (10 v / v%) of this solution 17.2 g of diphosgene were introduced to reflux at room temperature in a Ruhr apparatus provided with two coolers, the temperature rising to 63 ° C.
  • the remaining 90 ml of the solution of triphenylphosphine oxide in cyclopropyl methyl ketone were then added at 90 to 95 ° C. and 126 g of diphosgene were gassed in over 9 hours. After the diphosgene addition had ended, the mixture was left to after-react at 90 to 95 ° C.
  • the crude product obtained contained 21.3 g of cyclopropylvmyl chloride and 34.4 g of 1,1-dichlorocyclopropylethane.
  • the two-phase distillate consisted of 6.2 g of water and 47.6 g of organic phase containing 30.5% by weight of cyclopropylacetylene and 3.1% by weight of 1-cyclopropyl vinyl chloride. This corresponds to a conversion of 94% and a cyclopropylacetylene selectivity of 84%.
  • the resulting low boilers were continuously distilled out of the reaction mixture and condensed in a cooled receiver filled with 150 g of methanol.
  • the distillate obtained consisted of 100.7 g of cyclopropylacetylene, 13.8 g of 1-cyclopropyl vinyl chloride and 261 g of methanol. This corresponds to a conversion of 93% and a cyclopropylacetylene selectivity of 84%.
  • the cyclopropylacetylene could be enriched to 99.5% by distillation and subsequent extraction with water.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'invention concerne un procédé d'halogénation de cyclopropylméthylcétone avec au moins un dihalogènetriorganophosphorane de la formule générale (I) R3PHal2, formule dans laquelle les restes R peuvent être identiques ou différents et représentent un reste hydrocarbure C1 à C20 aliphatique saturé ou non saturé, un reste phényle ou alkylphényle C1 à C4, éventuellement encore substitué par un à deux groupes fluor, chlore et/ou nitro, P représente phosphore et Hal représente chlore, brome ou iode, à une température de 80 à 130 DEG C. Le dihalogènetriorganophosphorane de la formule générale (I) est préparé in situ à partir d'oxyde de triorganophosphane ou de sulfure de triorganophosphane de la formule générale (II): R3PA, formule dans laquelle R a la signification indiquée à la formule (I) et A représente oxygène ou soufre, avec un agent d'halogénation. Le procédé est caractérisé par le fait que l'oxyde de triorganosphosphane ou le sulfure de triorganophosphane est utilisé en proportions catalytiques. L'invention concerne également le produit d'halogénation de la cyclopropylcétone obtenu selon ce procédé ainsi qu'un procédé de transformation de ce produit en cyclopropylacétylène.
EP98910701A 1997-03-07 1998-02-18 Procede ameliore de production de cyclopropylacetylene Withdrawn EP0973708A1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19709401A DE19709401A1 (de) 1997-03-07 1997-03-07 Verbessertes Verfahren zur Herstellung von Cyclopropylacetylen
DE19709401 1997-03-07
DE1997132292 DE19732292A1 (de) 1997-07-26 1997-07-26 Verbessertes Verfahren zur Herstellung Cyclopropylacetylen
DE19732292 1997-07-26
PCT/EP1998/000927 WO1998040333A1 (fr) 1997-03-07 1998-02-18 Procede ameliore de production de cyclopropylacetylene

Publications (1)

Publication Number Publication Date
EP0973708A1 true EP0973708A1 (fr) 2000-01-26

Family

ID=26034618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98910701A Withdrawn EP0973708A1 (fr) 1997-03-07 1998-02-18 Procede ameliore de production de cyclopropylacetylene

Country Status (5)

Country Link
US (1) US6207864B1 (fr)
EP (1) EP0973708A1 (fr)
JP (1) JP2001514636A (fr)
CA (1) CA2283118A1 (fr)
WO (1) WO1998040333A1 (fr)

Cited By (1)

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CN111233618A (zh) * 2020-01-19 2020-06-05 浙江新和成股份有限公司 一种利用光气制备氯乙烯类化合物的方法

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EP0922686B1 (fr) * 1997-12-10 2002-02-06 Lonza A.G. Procédé pour la préparation de l'éthynylcyclopropane
US6359164B1 (en) 1998-10-01 2002-03-19 Zhe Wang Process for the preparation of cyclopropylacetylene
US6528693B1 (en) 1998-10-12 2003-03-04 Great Lakes (Uk) Limited Preparation of cyclopropylethyne and intermediates for preparation of cyclopropylethyne
GB2355988A (en) * 1999-10-28 2001-05-09 Merck & Co Inc Synthesis of cyclopropylacetylene in a one-pot process using a diazo-keto-phos phonate
US7838708B2 (en) 2001-06-20 2010-11-23 Grt, Inc. Hydrocarbon conversion process improvements
US20050171393A1 (en) 2003-07-15 2005-08-04 Lorkovic Ivan M. Hydrocarbon synthesis
US7244867B2 (en) 2004-04-16 2007-07-17 Marathon Oil Company Process for converting gaseous alkanes to liquid hydrocarbons
US20060100469A1 (en) 2004-04-16 2006-05-11 Waycuilis John J Process for converting gaseous alkanes to olefins and liquid hydrocarbons
US7674941B2 (en) 2004-04-16 2010-03-09 Marathon Gtf Technology, Ltd. Processes for converting gaseous alkanes to liquid hydrocarbons
US8642822B2 (en) 2004-04-16 2014-02-04 Marathon Gtf Technology, Ltd. Processes for converting gaseous alkanes to liquid hydrocarbons using microchannel reactor
US8173851B2 (en) 2004-04-16 2012-05-08 Marathon Gtf Technology, Ltd. Processes for converting gaseous alkanes to liquid hydrocarbons
US20080275284A1 (en) * 2004-04-16 2008-11-06 Marathon Oil Company Process for converting gaseous alkanes to liquid hydrocarbons
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CN105985223B (zh) * 2014-12-30 2019-03-15 安徽贝克联合制药有限公司 一种环丙基乙炔的制备方法
US11214631B2 (en) 2017-11-14 2022-01-04 Exxonmobil Chemical Patents Inc. (Di)silicon bridged metallocenes that produce polyethylene with broad molecular weight distribution and high molecular weight
CN109928862B (zh) * 2018-12-28 2021-10-26 瑞孚信江苏药业股份有限公司 一种ɑ-氯乙烯基环丙烷的新型制备方法
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CN111233618A (zh) * 2020-01-19 2020-06-05 浙江新和成股份有限公司 一种利用光气制备氯乙烯类化合物的方法
CN111233618B (zh) * 2020-01-19 2022-06-07 浙江新和成股份有限公司 一种利用光气制备氯乙烯类化合物的方法

Also Published As

Publication number Publication date
WO1998040333A1 (fr) 1998-09-17
US6207864B1 (en) 2001-03-27
JP2001514636A (ja) 2001-09-11
CA2283118A1 (fr) 1998-09-17

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