发明授权
US3642811A Process for the preparation of 3-amino-4-bromo-1 2 5-thiadiazole
失效
制备3-氨基-4-溴-1,2,5-噻唑的方法
- 专利标题: Process for the preparation of 3-amino-4-bromo-1 2 5-thiadiazole
- 专利标题(中): 制备3-氨基-4-溴-1,2,5-噻唑的方法
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申请号: US3642811D申请日: 1969-03-27
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公开(公告)号: US3642811A公开(公告)日: 1972-02-15
- 发明人: VORREITHER HANS-KLAUS , OBENDORF WERNER , MENZL KURT , HOFER HARALD
- 申请人: CHEMIE LINZ AG
- 专利权人: Chemie Linz Ag
- 当前专利权人: Chemie Linz Ag
- 优先权: AT322268 1968-04-03
- 主分类号: C07D285/10
- IPC分类号: C07D285/10 ; C07D91/68
摘要:
3-AMINO-4-BROMO-1,2,5-THIADIAZOLE IS PREPARED BY REACTING AN ALKALIMETAL SALT OF 3-AMINO-1,2,5-THIADIAZOLE-(4)CARBOXYLIC ACID IN AQUEOUS SUSPENSION WITH BROMINE AT A TEMPERATURE BELOW 65*C.
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