JPS5639084A - Preparation of optically active cyclopentenolone - Google Patents

Preparation of optically active cyclopentenolone

Info

Publication number
JPS5639084A
JPS5639084A JP11477279A JP11477279A JPS5639084A JP S5639084 A JPS5639084 A JP S5639084A JP 11477279 A JP11477279 A JP 11477279A JP 11477279 A JP11477279 A JP 11477279A JP S5639084 A JPS5639084 A JP S5639084A
Authority
JP
Japan
Prior art keywords
optically active
compound
formula
readily
insecticides
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
JP11477279A
Other languages
Japanese (ja)
Inventor
Nobushige Itaya
Takashi Matsuo
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 JP11477279A priority Critical patent/JPS5639084A/en
Priority to EP19800105103 priority patent/EP0029092B1/en
Priority to DE8080105103T priority patent/DE3061543D1/en
Publication of JPS5639084A publication Critical patent/JPS5639084A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To obtain the titled compound useful as a raw material for insecticides readily, by solvolyzing a specific lactone compound with water or an alcohol.
CONSTITUTION: An optically active lactone compound of formula I is solvolyzed with a compound of formula II (R is H or lower alkyl), preferably in the presence of an acidic catalyst, e.g. oxalic acid, at a temperature in the range of room temperature to the boiling point of the solvent for 30min to 4hr to give optically active cyclopentenolone of formula III readily. The resultant compound of formula III is esterified with various acids mainly chrysanthemic acid to afford powerful insecticides.
COPYRIGHT: (C)1981,JPO&Japio
JP11477279A 1979-09-06 1979-09-06 Preparation of optically active cyclopentenolone Pending JPS5639084A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP11477279A JPS5639084A (en) 1979-09-06 1979-09-06 Preparation of optically active cyclopentenolone
EP19800105103 EP0029092B1 (en) 1979-09-06 1980-08-27 Cis-(1r,2s)-3,3-dimethyl-2-((4s)-3-methyl-2-(2-propynyl)cyclopent-2-en-1-on-4-yloxyhydroxymethyl)-cyclopropanecarboxylic lactone and method of producing (s)-4-hydroxy-3-methyl-2-(2-propynyl)-cyclopent-2-en-1-on
DE8080105103T DE3061543D1 (en) 1979-09-06 1980-08-27 Cis-(1r,2s)-3,3-dimethyl-2-((4s)-3-methyl-2-(2-propynyl)cyclopent-2-en-1-on-4-yloxyhydroxymethyl)-cyclopropanecarboxylic lactone and method of producing (s)-4-hydroxy-3-methyl-2-(2-propynyl)-cyclopent-2-en-1-on

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11477279A JPS5639084A (en) 1979-09-06 1979-09-06 Preparation of optically active cyclopentenolone

Publications (1)

Publication Number Publication Date
JPS5639084A true JPS5639084A (en) 1981-04-14

Family

ID=14646297

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11477279A Pending JPS5639084A (en) 1979-09-06 1979-09-06 Preparation of optically active cyclopentenolone

Country Status (1)

Country Link
JP (1) JPS5639084A (en)

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