DK171105B1 - Fremgangsmåde til omdannelse af 2,2-dimethyl-3R-(2,2-dihalogenvinyl)-cyclopropan-1R-carboxylsyre-R-alfa-cyan-3-phenoxybenzylester eller blandinger heraf med alfa-S-esteren med mere end 50% af R-formen til den racemiske 2,2-dimethyl-3R-(2,2-dihalogenvinyl)-cyclopropan-1R-carboxylsyre-R,S-alfa-cyan-3-phenoxybenzylester - Google Patents

Fremgangsmåde til omdannelse af 2,2-dimethyl-3R-(2,2-dihalogenvinyl)-cyclopropan-1R-carboxylsyre-R-alfa-cyan-3-phenoxybenzylester eller blandinger heraf med alfa-S-esteren med mere end 50% af R-formen til den racemiske 2,2-dimethyl-3R-(2,2-dihalogenvinyl)-cyclopropan-1R-carboxylsyre-R,S-alfa-cyan-3-phenoxybenzylester Download PDF

Info

Publication number
DK171105B1
DK171105B1 DK176977A DK176977A DK171105B1 DK 171105 B1 DK171105 B1 DK 171105B1 DK 176977 A DK176977 A DK 176977A DK 176977 A DK176977 A DK 176977A DK 171105 B1 DK171105 B1 DK 171105B1
Authority
DK
Denmark
Prior art keywords
ester
alcohol
dimethyl
mixture
carboxylic acid
Prior art date
Application number
DK176977A
Other languages
Danish (da)
English (en)
Other versions
DK176977A (da
Inventor
Julien Warnant
Jacques Prost-Marechal
Philippe Cosquer
Original Assignee
Roussel Uclaf
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
Application filed by Roussel Uclaf filed Critical Roussel Uclaf
Publication of DK176977A publication Critical patent/DK176977A/da
Application granted granted Critical
Publication of DK171105B1 publication Critical patent/DK171105B1/da

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07B—GENERAL METHODS OF ORGANIC CHEMISTRY; APPARATUS THEREFOR
    • C07B55/00—Racemisation; Complete or partial inversion
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C07C255/49—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
    • C07C255/53—Carboxylic acid nitriles having cyano groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton containing cyano groups and hydroxy groups bound to the carbon skeleton

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)
DK176977A 1976-04-23 1977-04-22 Fremgangsmåde til omdannelse af 2,2-dimethyl-3R-(2,2-dihalogenvinyl)-cyclopropan-1R-carboxylsyre-R-alfa-cyan-3-phenoxybenzylester eller blandinger heraf med alfa-S-esteren med mere end 50% af R-formen til den racemiske 2,2-dimethyl-3R-(2,2-dihalogenvinyl)-cyclopropan-1R-carboxylsyre-R,S-alfa-cyan-3-phenoxybenzylester DK171105B1 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7612093A FR2348901A1 (fr) 1976-04-23 1976-04-23 Procede de transformation d'un ester d'acide chiral d'alcool secondaire alpha-cyane optiquement actif en ester d'acide chiral d'alcool secondaire alpha-cyane racemique
FR7612093 1976-04-23

Publications (2)

Publication Number Publication Date
DK176977A DK176977A (da) 1977-10-24
DK171105B1 true DK171105B1 (da) 1996-06-10

Family

ID=9172255

Family Applications (1)

Application Number Title Priority Date Filing Date
DK176977A DK171105B1 (da) 1976-04-23 1977-04-22 Fremgangsmåde til omdannelse af 2,2-dimethyl-3R-(2,2-dihalogenvinyl)-cyclopropan-1R-carboxylsyre-R-alfa-cyan-3-phenoxybenzylester eller blandinger heraf med alfa-S-esteren med mere end 50% af R-formen til den racemiske 2,2-dimethyl-3R-(2,2-dihalogenvinyl)-cyclopropan-1R-carboxylsyre-R,S-alfa-cyan-3-phenoxybenzylester

Country Status (18)

Country Link
US (1) US4151195A (fr)
JP (1) JPS52148047A (fr)
AU (1) AU510903B2 (fr)
BE (1) BE853866A (fr)
CA (1) CA1078864A (fr)
CH (1) CH620890A5 (fr)
DE (1) DE2718038C2 (fr)
DK (1) DK171105B1 (fr)
ES (1) ES458109A1 (fr)
FR (1) FR2348901A1 (fr)
GB (1) GB1582594A (fr)
IE (1) IE45383B1 (fr)
IT (1) IT1082199B (fr)
LU (1) LU77185A1 (fr)
NL (1) NL179280C (fr)
SE (1) SE446725B (fr)
SU (1) SU1200848A3 (fr)
ZA (1) ZA772465B (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1599876A (en) 1977-06-13 1981-10-07 Shell Int Research Conversion of a stereoisomer into its diastereoisomer
CA1215717A (fr) * 1977-09-26 1986-12-23 Samuel B. Soloway Methode de conversion d'un ester stereo-isomerique a sa forme de diastereo-isomere
JPS54103831A (en) * 1978-01-27 1979-08-15 Sumitomo Chem Co Ltd Separation of stereoisomers of higher active cyanoo33 phenoxybenzyl 22*44chlorophenyl**isovalerate
ZA7911B (en) * 1978-01-31 1980-01-30 Roussel Uclaf Optically-active substituted benzyl alcohol and process for preparing it
GB2044264B (en) * 1979-03-08 1983-05-05 Kuraray Co Racemic modification of cyclopropanecarboxylate
US4261921A (en) * 1979-06-06 1981-04-14 Fmc Corporation Process for preparation of a crystalline insecticidal pyrethroid enantiomer pair
US4308279A (en) * 1979-06-06 1981-12-29 Fmc Corporation Crystalline, insecticidal pyrethroid
JPS5657756A (en) * 1979-10-15 1981-05-20 Sumitomo Chem Co Ltd Preparation of more highly active carboxylic ester
CA1150301A (fr) * 1979-11-27 1983-07-19 Michael J. Bull Derives de l'ester d'acide cyclopropane-carboxylique
US4260633A (en) * 1980-04-21 1981-04-07 Zoecon Corporation Pesticidal esters of amino acids
CA1150730A (fr) * 1980-04-23 1983-07-26 Michael J. Bull Preparation de derives d'ester d'acide cyclopropane-carboxylique
CA1162560A (fr) 1980-04-23 1984-02-21 Ronald F. Mason Methode de preparation de derives d'esters d'acide cyclopropane-carboxylique
EP0291626A3 (fr) 1982-11-22 1989-05-31 E.I. Du Pont De Nemours And Company Procédé pour la préparation d'esters cyanométhyliques optiquement actifs
DE3401483A1 (de) * 1984-01-18 1985-07-25 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung bestimmter enantiomerenpaare von permethrinsaeure-(alpha)-cyano-3-phenoxy-4-fluor-benzyl-ester
GB2187385A (en) * 1986-03-07 1987-09-09 Shell Int Research Method of combatting colorado beetles using chemical compounds and compositions containing the chemical compounds
GB9127355D0 (en) * 1991-12-24 1992-02-19 Ici Plc Isomerisation process
US5517706A (en) * 1991-12-31 1996-05-21 Kashima; Hiroshi Sofa-bed
US6262278B1 (en) * 1995-03-14 2001-07-17 President And Fellows Of Harvard College Stereoselective ring opening reactions
US5665890A (en) * 1995-03-14 1997-09-09 President And Fellows Of Harvard College Stereoselective ring opening reactions
US7320829B2 (en) * 1998-03-05 2008-01-22 Omnova Solutions Inc. Fluorinated polymer and amine resin compositions and products formed therefrom

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3046299A (en) * 1958-07-28 1962-07-24 Rhone Poulenc Sa Process for the preparation of cyclopropane-carboxylic acids of transform
GB1005722A (en) * 1963-04-23 1965-09-29 Sumitomo Chemical Co Process for producing trans-chrysanthemic acid esters
FR2036088A5 (fr) * 1969-03-04 1970-12-24 Roussel Uclaf
SE366022B (fr) * 1969-03-24 1974-04-08 Sumitomo Chemical Co
US3906026A (en) * 1972-05-16 1975-09-16 Sumitomo Chemical Co Process for preparing alkyl trans-chrysanthemate
DE2326077C2 (de) * 1972-05-25 1985-12-12 National Research Development Corp., London Ungesättigte Cyclopropancarbonsäuren und deren Derivate, deren Herstellung und diese enthaltende Insektizide
JPS525738A (en) * 1975-06-27 1977-01-17 Sumitomo Chem Co Ltd Process for racemization of optically active 2,2-dimethyl-3-(2,2-dichl orovinyl)-cyclopropanecarboxylic acid and its derivatives

Also Published As

Publication number Publication date
NL179280B (nl) 1986-03-17
CH620890A5 (fr) 1980-12-31
CA1078864A (fr) 1980-06-03
AU2458577A (en) 1978-11-02
NL7704520A (nl) 1977-10-25
SE446725B (sv) 1986-10-06
JPS6127384B2 (fr) 1986-06-25
SE7704517L (sv) 1977-10-24
DE2718038A1 (de) 1977-11-17
ZA772465B (en) 1978-06-28
DE2718038C2 (de) 1984-06-07
ES458109A1 (es) 1978-03-16
DK176977A (da) 1977-10-24
IT1082199B (it) 1985-05-21
BE853866A (fr) 1977-10-24
IE45383B1 (en) 1982-08-11
FR2348901B1 (fr) 1983-01-28
AU510903B2 (en) 1980-07-17
FR2348901A1 (fr) 1977-11-18
NL179280C (nl) 1986-08-18
SU1200848A3 (ru) 1985-12-23
LU77185A1 (fr) 1977-11-22
US4151195A (en) 1979-04-24
GB1582594A (en) 1981-01-14
JPS52148047A (en) 1977-12-08
IE45383L (en) 1977-10-23

Similar Documents

Publication Publication Date Title
DK171105B1 (da) Fremgangsmåde til omdannelse af 2,2-dimethyl-3R-(2,2-dihalogenvinyl)-cyclopropan-1R-carboxylsyre-R-alfa-cyan-3-phenoxybenzylester eller blandinger heraf med alfa-S-esteren med mere end 50% af R-formen til den racemiske 2,2-dimethyl-3R-(2,2-dihalogenvinyl)-cyclopropan-1R-carboxylsyre-R,S-alfa-cyan-3-phenoxybenzylester
DE60009953T2 (de) Neuartiges verfahren
DE69732772T2 (de) Enzymatisches verfahren zur stereoselektiven herstellung von therapeutischen amiden
JPH0321550B2 (fr)
US4673761A (en) Process for preparing anti-inflammatory cycloalkylidenemethylphenylacetic acid derivatives
Matsushita et al. Optical activation of. ALPHA.-substituted carbonyl compounds by asymmetric transformation.
US5250743A (en) Method of intercoversion of enantiomers of acyclic 1,2-dihydroxy-3-alkenes
US5286899A (en) Process for the stereoselective transformation of a diol to an alcohol
US4897481A (en) Process for the minimization of racemization in the preparation of optically active ((aryloxy)phenoxy)propionate herbicides
US3981919A (en) Racemization of optically active allethrolone
JPS62138197A (ja) ２−アミノブタノ−ルの光学異性体の酵素による分離方法
WO2010050499A1 (fr) Procédé de production d'un acide carboxylique organique optiquement actif
US4001334A (en) Racemization of optically active allethrolone
JPH0586775B2 (fr)
EP0461541B1 (fr) Procédé pour le dédoublement du mélange racémique d'acides 2,2-diméthylcyclopropane carboxyliques
JPH01175956A (ja) 光学的に純粋な３−ヒドロキシ酸類の精製法
CH636868A5 (fr) Procede de preparation d'un ether d'alcool alpha-cyane optiquement actif.
JPH09188649A (ja) 共沸エステル化による合成ピレトロイドの製造方法
JP3010694B2 (ja) ２―（３―ベンゾイル）フェニルプロピオン酸のラセミ化法
FI96681C (fi) Menetelmä 2,2-dimetyylisyklopropaanikarboksyylihapon rasemaattipilkkomiseksi
JPS581097B2 (ja) 光学活性α−置換アリ−ル酢酸のラセミ化方法
JP4005168B2 (ja) 光学活性な２−アリールオキシプロピオン酸の製造法
KR101510637B1 (ko) 신규한 ｌ-클로페라스틴의 중간체 및 그 제조 방법
JPS6116262B2 (fr)
JPS58124749A (ja) （±）−エリトロ−２−アミノ−１，２−ジフェニルエタノ−ルの光学分割法

Legal Events

Date Code Title Description
B1 Patent granted (law 1993)
PUP Patent expired