发明名称 |
Process for the preparation of bicyclothiadiazinones |
摘要 |
The disclosure herein relates to a novel process for the preparation of bicyclothiadiazinones. In particular the process involves an acid-catalyzed cyclization of the appropriate sulfamoyl acid or ester using a mixture of trifluoroacetic acid and trifluoroacetic anhydride as catalyst.
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申请公布号 |
US4139700(A) |
申请公布日期 |
1979.02.13 |
申请号 |
US19770819636 |
申请日期 |
1977.07.27 |
申请人 |
MONSANTO COMPANY |
发明人 |
KLOEK, JAMES A. |
分类号 |
C07C49/517;C07D285/16;C07D513/04;(IPC1-7):C07D285/16 |
主分类号 |
C07C49/517 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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