Process for preparing dihalovinylcyclopropanecarboxylates
申请人:Sagami Chemical Research Center
公开号:US04214097A1
公开(公告)日:1980-07-22
Novel syntheses of dihalovinylcyclopropanecarboxylates, including potent insecticides, are described. The processes begin with the reaction between an alkenol and an orthoester to produce a .gamma.-unsaturated carboxylate, followed by the catalyzed addition of a carbon tetrahalide to the double bond and dehydrohalogenation to produce a cyclopropane derivative.