JPS55104250A - Optically active alpha-cyano-3-phenoxybenzyl 2-(4-tert- butylphenyl)isovalerate, its preparation, and insecticide and acaricide comprising it - Google Patents

Optically active alpha-cyano-3-phenoxybenzyl 2-(4-tert- butylphenyl)isovalerate, its preparation, and insecticide and acaricide comprising it

Info

Publication number
JPS55104250A
JPS55104250A JP1250179A JP1250179A JPS55104250A JP S55104250 A JPS55104250 A JP S55104250A JP 1250179 A JP1250179 A JP 1250179A JP 1250179 A JP1250179 A JP 1250179A JP S55104250 A JPS55104250 A JP S55104250A
Authority
JP
Japan
Prior art keywords
ester
butylphenyl
cyano
tert
phenoxybenzyl
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
JP1250179A
Other languages
Japanese (ja)
Inventor
Koichi Akeda
Noriyoshi Kasamatsu
Yukio Suzuki
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 JP1250179A priority Critical patent/JPS55104250A/en
Publication of JPS55104250A publication Critical patent/JPS55104250A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the title optically active compound having an activity 4 times that of the racemic modification, by adding a seed crystal to an α-cyano-3-phenoxybenzyl ester solution.
CONSTITUTION: S-(+)-2-(4-tert-Butylphenyl)isovaleric acid is esterified by the well-known method to form a solution of an ester (in a lower alcohol) having the acid side of the (S) form. Crystals of the ester of the formula (× is asymmetric carbon atom), wherein the acid and alcohol sides are (S)-forms, are formed from the solution in the presence or absence of a basic catalyst, e.g. a nitrogen or metallic base, and separated from the mother liquor. Alternatively, an ester wherein the acid side is the (S)-form is recovered by concentration to give the title compound comprising 60% or more of ester having the both sides of (S)-forms, and a high activity.
COPYRIGHT: (C)1980,JPO&Japio
JP1250179A 1979-02-05 1979-02-05 Optically active alpha-cyano-3-phenoxybenzyl 2-(4-tert- butylphenyl)isovalerate, its preparation, and insecticide and acaricide comprising it Pending JPS55104250A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1250179A JPS55104250A (en) 1979-02-05 1979-02-05 Optically active alpha-cyano-3-phenoxybenzyl 2-(4-tert- butylphenyl)isovalerate, its preparation, and insecticide and acaricide comprising it

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1250179A JPS55104250A (en) 1979-02-05 1979-02-05 Optically active alpha-cyano-3-phenoxybenzyl 2-(4-tert- butylphenyl)isovalerate, its preparation, and insecticide and acaricide comprising it

Publications (1)

Publication Number Publication Date
JPS55104250A true JPS55104250A (en) 1980-08-09

Family

ID=11807106

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1250179A Pending JPS55104250A (en) 1979-02-05 1979-02-05 Optically active alpha-cyano-3-phenoxybenzyl 2-(4-tert- butylphenyl)isovalerate, its preparation, and insecticide and acaricide comprising it

Country Status (1)

Country Link
JP (1) JPS55104250A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5770852A (en) * 1980-10-20 1982-05-01 Sumitomo Chem Co Ltd Preparation of optical active alpha-cyano-3-phenyl-benzyl-2-(4-chlorophenyl) isovalerate

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4926425A (en) * 1972-07-11 1974-03-08
JPS5025544A (en) * 1973-07-05 1975-03-18

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4926425A (en) * 1972-07-11 1974-03-08
JPS5025544A (en) * 1973-07-05 1975-03-18

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5770852A (en) * 1980-10-20 1982-05-01 Sumitomo Chem Co Ltd Preparation of optical active alpha-cyano-3-phenyl-benzyl-2-(4-chlorophenyl) isovalerate

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