发明授权
- 专利标题: Process for preparing dihalovinylcyclopropanecarboxylates
- 专利标题(中): 制备二卤代乙酰基环丙烷羧酸酯的方法
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申请号: US870974申请日: 1978-01-20
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公开(公告)号: US4214097A公开(公告)日: 1980-07-22
- 发明人: Kiyoshi Kondo , Kiyohide Matsui , Akira Negishi , Yuriko Takahatake
- 申请人: Kiyoshi Kondo , Kiyohide Matsui , Akira Negishi , Yuriko Takahatake
- 申请人地址: JPX Tokyo
- 专利权人: Sagami Chemical Research Center
- 当前专利权人: Sagami Chemical Research Center
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX50/21857 19750224
- 主分类号: C07C43/14
- IPC分类号: C07C43/14 ; C07C43/32 ; C07C67/00 ; C07C69/533 ; C07C69/65 ; C07C69/74 ; C07C69/743 ; C07C69/753 ; C07C253/00 ; C07C255/31 ; C07D307/45
摘要:
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.
公开/授权文献
- US5785805A Friction welding fusion enhancer apparatus 公开/授权日:1998-07-28
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