PROCESS FOR PREPARING TRANS-2,2-DIMETHYL-3-(2,2-DIHALOVINYL)-CYCLOPROPANE CARBOXYLIC ACID ESTERS

PROCESS FOR PREPARING TRANS-2,2-DIMETHYL-3-(2,2-DIHALOVINYL)-CYCLOPROPANE CARBOXYLIC ACID ESTERS

Trans-2,2-dimethyl-3-(2,2-dihalovinyl)-cyclopropane carboxylic acid esters which are intermediate of insecticides are prepared by allowing (1) alkali metal alkoxides and titanium alkoxides or (2) silicon iodides to react with cis- or cis-/trans-mixed 2,2-dimethyl-3-(2,2-dihalovinyl)-cyclopropane car...

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Bibliographische Detailangaben
Hauptverfasser: SUZUKAMO, GOHFU, FUKAO, MASAMI, SAKITO, YOJI, SAKANE, HIROKO, HAGIYA, KOJI
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
APPARATUS THEREFOR
CHEMISTRY
GENERAL METHODS OF ORGANIC CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Zusammenfassung:Trans-2,2-dimethyl-3-(2,2-dihalovinyl)-cyclopropane carboxylic acid esters which are intermediate of insecticides are prepared by allowing (1) alkali metal alkoxides and titanium alkoxides or (2) silicon iodides to react with cis- or cis-/trans-mixed 2,2-dimethyl-3-(2,2-dihalovinyl)-cyclopropane carboxylic acid esters of the formula wherein X is a halogen atom and R is an alkyl, cycloalkyl or aralkyl group having 1 - 10 carbon atoms.