NOUVEAU BUTYL ACETATE DERIVE DE CYCLOPROPANE UTILE DANS LA PREPARATION D'ESTERS CYCLOPROPANECARBOXYLATES ET PROCEDE POUR SA PREPARATION

摘要

The invention relates to a compound which is suitable as an intermediate in the production of pyrethroid insecticides and which has the formula <IMAGE> in the (1R,-cis)- stereoisomeric form. The intermediate can be prepared by a process comprising the reaction of (1R,-cis)-1-(2-hydroxy-3-oxobutyl)-3,3-dimethylcyclopropanecarbaldehyd e with an acetylating agent.