公开(公告)号：US4999451A

公开(公告)日：1991-03-12

申请号：US343318

申请日：1989-04-26

申请人： Kiyoshi Kondo ,  Kiyohide Matsui ,  Akira Negishi ,  Yuriko Takahatakae

发明人： Kiyoshi Kondo ,  Kiyohide Matsui ,  Akira Negishi ,  Yuriko Takahatakae

IPC分类号： A01N53/08 ,  C07C43/14 ,  C07C43/32 ,  C07C69/533 ,  C07C69/65 ,  C07C69/74 ,  C07C69/743

CPC分类号： C07C43/32 ,  C07C43/14 ,  C07C67/00 ,  C07C67/03 ,  C07C67/27 ,  C07C67/317 ,  C07C67/343 ,  C07C2101/02

摘要： 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.