发明授权
- 专利标题: Process for the production of 1,2,4-triazole derivatives
- 专利标题(中): 生产1,2,4-三唑衍生物的方法
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申请号: US583377申请日: 1975-06-03
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公开(公告)号: US3992398A公开(公告)日: 1976-11-16
- 发明人: Beat Bohner , Dag Dawes , Willy Meyer , Jean Perchais , Hanspeter Fischer
- 申请人: Beat Bohner , Dag Dawes , Willy Meyer , Jean Perchais , Hanspeter Fischer
- 申请人地址: NY Ardsley
- 专利权人: Ciba-Geigy Corporation
- 当前专利权人: Ciba-Geigy Corporation
- 当前专利权人地址: NY Ardsley
- 优先权: CH8088/74 19740613; CH16244/74 19741206
- 主分类号: A01N
- IPC分类号: A01N20060101 ; C07C255/66 ; C07D20060101 ; C07D249/00 ; C07D249/08 ; C07D249/10 ; C07D249/12
摘要:
Process for the production of 1-alkyl-3-hydroxy-5-chloro-1,2,4-triazoles wherein an alkylhydrazine is reacted in an inert solvent in the presence of an acid binding agent with cyanogen chloride to 1-alkyl-1-cyanohydrazine which is subsequently cyclized with phosgene.
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