JPS57206648A - Preparation of mixture of steric isomers of phenylacetic acid ester derivative having higher activity - Google Patents

Preparation of mixture of steric isomers of phenylacetic acid ester derivative having higher activity

Info

Publication number
JPS57206648A
JPS57206648A JP8994181A JP8994181A JPS57206648A JP S57206648 A JPS57206648 A JP S57206648A JP 8994181 A JP8994181 A JP 8994181A JP 8994181 A JP8994181 A JP 8994181A JP S57206648 A JPS57206648 A JP S57206648A
Authority
JP
Japan
Prior art keywords
acid ester
phenylacetic acid
ester derivative
mixture
preparation
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.)
Pending
Application number
JP8994181A
Other languages
Japanese (ja)
Inventor
Yukio Suzuki
Masahiro Hayashi
Kenji Taguma
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP8994181A priority Critical patent/JPS57206648A/en
Publication of JPS57206648A publication Critical patent/JPS57206648A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a steric isomer of a phenylacetic acid ester derivative having higher insecticidal activity than the mother liquid used as the raw material, in a short time, by removing one optical isomer and its enantiomer from the mixture of steric isomers of a phenylacetic acid ester derivative in the form of crystal.
CONSTITUTION: The objective material rich in enantiomorphic pair consisting of (S)-α-cyano-3-(4-fluorophenoxy)benzyl (S)-2-(4-chlorophenyl)isolvalerate and its enantiomer can be prepared by removing the enantiomorphic pair consisting of (R)-α-cyano-3-(4-fluorophenoxy)benzyl (S)-2-(4-chlorophenyl)isovalerate and its enantiomer as crystals from α-cyano-3-(4-fluorophenoxy) benzyl 2-(4-chlorophenyl) isovalerate using a solvent such as alcohol, aliphatic hydrocarbon, alicyclic hydrocarbon, etc.
COPYRIGHT: (C)1982,JPO&Japio
JP8994181A 1981-06-10 1981-06-10 Preparation of mixture of steric isomers of phenylacetic acid ester derivative having higher activity Pending JPS57206648A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8994181A JPS57206648A (en) 1981-06-10 1981-06-10 Preparation of mixture of steric isomers of phenylacetic acid ester derivative having higher activity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8994181A JPS57206648A (en) 1981-06-10 1981-06-10 Preparation of mixture of steric isomers of phenylacetic acid ester derivative having higher activity

Publications (1)

Publication Number Publication Date
JPS57206648A true JPS57206648A (en) 1982-12-18

Family

ID=13984722

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8994181A Pending JPS57206648A (en) 1981-06-10 1981-06-10 Preparation of mixture of steric isomers of phenylacetic acid ester derivative having higher activity

Country Status (1)

Country Link
JP (1) JPS57206648A (en)

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