发明授权
US3979403A Process for the preparation of
3-trichloromethyl-5-chloro-1,2,4-thiadiazole
失效
制备3-三氯甲基-5-氯-1,2,4-噻二唑的方法
- 专利标题： Process for the preparation of 3-trichloromethyl-5-chloro-1,2,4-thiadiazole
- 专利标题（中）： 制备3-三氯甲基-5-氯-1,2,4-噻二唑的方法
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申请号： US561765申请日： 1975-03-31
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公开(公告)号： US3979403A公开(公告)日： 1976-09-07
- 发明人: Philip M. Pivawer , Douglas A. Farmer, Jr.
- 申请人： Philip M. Pivawer , Douglas A. Farmer, Jr.
- 申请人地址： CT New Haven
- 专利权人： Olin Corporation
- 当前专利权人： Olin Corporation
- 当前专利权人地址： CT New Haven
- 主分类号： A01N43/836
- IPC分类号： A01N43/836 ; C07D285/08
摘要：
A process is provided for preparing 3-trichloromethyl-5-chloro-1,2,4-thiadiazole in improved yields by reacting a defined molar excess trichloroacetamidine with trichloromethanesulfenyl chloride while controlling pH of the reaction mixture. The present process may advantageously be employed in a batch or continuous process.
公开/授权文献
- US5687968A Wagering system 公开/授权日：1997-11-18