发明授权
- 专利标题： Synthesis of certain triazole compounds
- 专利标题（中）： 某些三唑化合物的合成
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申请号： US10315631申请日： 2002-12-10
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公开(公告)号： US06657066B1公开(公告)日： 2003-12-02
- 发明人: Ileana Place , John W. Harder , Robert F. Romanet , William B. Vreeland
- 申请人： Ileana Place , John W. Harder , Robert F. Romanet , William B. Vreeland
- 主分类号： C07D48704
- IPC分类号： C07D48704
摘要：
Disclosed is a process for forming a 1H-pyrazolo (1,5-b)-[1,2,4]-triazole compound by ring closing a pyrazoloamidine compound comprising reacting the amidine with an oxidizing agent having a reduction potential vs Ag/AgCl that is more positive than −0.16V and less than +1.43V in the presence of a halogen atom. The invention also discloses certain triazole compounds that are successfully made by the conventional process. The process and compounds of the invention provide improved yields and reduce or eliminate unwanted side-reactions.
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