PROCESS FOR PRODUCING BETA-FLUORO-ACYL-BETA-HALOGENO-VINYL-ALKYL-ETHERS

Novel beta -fluoroacyl- beta -halogenovinyl alkyl ethers of the formula (I) in which R1 is a fluorinated alkyl group having 1 to 9 carbon atoms, Hal is a halogen atom, and R2 is an alkyl group having 1 to 7 carbon atoms, useful as insecticide intermediates, are produced by reacting a beta -fluoroacy...

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Bibliographic Details
Main Authors OOMS,PIETER,DE, HEINE,HANS-GEORG,DE
Format Patent
LanguageEnglish
Published 28.09.1989
Edition4
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:Novel beta -fluoroacyl- beta -halogenovinyl alkyl ethers of the formula (I) in which R1 is a fluorinated alkyl group having 1 to 9 carbon atoms, Hal is a halogen atom, and R2 is an alkyl group having 1 to 7 carbon atoms, useful as insecticide intermediates, are produced by reacting a beta -fluoroacylvinyl ether of the formula R1-CO-CH=CH-OR2(II) with a halogenating agent at a temperature of -70 DEG C. to +80 DEG C., to produce a halogenation product of the formula (III) and dehydrohalogenating (III) at a temperature of -20 DEG C. to +100 DEG C.
Bibliography:Application Number: HU19880002368