Process for preparing dihalovinylcyclopropanecarboxylates

Details Process for preparing dihalovinylcyclopropanecarboxylates Process for preparing dihalovinylcyclopropanecarboxylates

1983-06-27

1989-05-23

Shippen, Michael L.

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

Organic compounds

Carboxylic acid esters

C07C 67313

Patent

active

048332666

ABSTRACT:
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.

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