- 专利标题: Process for preparing gamma-cyhalothrin
-
申请号: US10546138申请日: 2004-02-23
-
公开(公告)号: US20060148892A1公开(公告)日: 2006-07-06
- 发明人: Stephen Brown , Brian Scott
- 申请人: Stephen Brown , Brian Scott
- 优先权: GB0304132.4 20030224
- 国际申请: PCT/GB04/00726 WO 20040223
- 主分类号: A01N37/34
- IPC分类号: A01N37/34 ; C07C253/30
摘要:
A process for the preparation of gamma-cyhalothrin comprising steps of a) chlorinating 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cyclopropanecarboxylic acid to give 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cyclopropanecarboxylic acid chloride and b) esterifying 1R cis-Z 3-(2-chloro-3,3,3-trifluoro-1-propenyl)-2,2-dimethyl cyclopropanecarboxylic acid chloride with the (S)-cyanohydrin of 3-phenoxy benzaldehyde (III).
公开/授权文献
- US07507852B2 Process for preparing gamma-cyhalothrin 公开/授权日:2009-03-24
信息查询