Process for preparing dihalovinylcyclopropanecarboxylates

Details Process for preparing dihalovinylcyclopropanecarboxylates Process for preparing dihalovinylcyclopropanecarboxylates

1989-04-26

1991-03-12

Shippen, Michael L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C07C 6974

Patent

active

049994514

ABSTRACT:
Novel synthesis 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.

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