发明名称 |
PROCESS FOR PREPARING 3-AMINO-1,2,4-BENZOTRIAZINE DIOXIDE |
摘要 |
Process of producing 3-amino-1,2,4-benzotriazine 1,4-dioxide by reacting benzofurazan-1 oxide with disodiumcyanamide under homogeneous conditions followed by allowing crystallization to occur in a buffered solution. In a preferred embodiment, the process comprises reacting benzofurazan-1 oxide with cyanamide and sodium hydroxide under homogeneous conditions followed by purification in a mixture of acetone and acetic acid.
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申请公布号 |
WO9720828(A1) |
申请公布日期 |
1997.06.12 |
申请号 |
WO1996US18761 |
申请日期 |
1996.11.21 |
申请人 |
SANOFI;PHILION, RICHARD, E. |
发明人 |
PHILION, RICHARD, E. |
分类号 |
C07D253/06;C07D253/10;(IPC1-7):C07D253/065 |
主分类号 |
C07D253/06 |
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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