发明授权
- 专利标题： Method for the production of 4,6-dichloropyrimidine with the aid of phosgene
- 专利标题（中）： 借助光气生产4,6-二氯嘧啶的方法
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申请号： US10048087申请日： 2002-01-24
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公开(公告)号： US06441171B1公开(公告)日： 2002-08-27
- 发明人: Franz-Josef Mais , Günther Cramm , Alexander Klausener , Guido Steffan
- 申请人： Franz-Josef Mais , Günther Cramm , Alexander Klausener , Guido Steffan
- 优先权： DE19935322 19990728
- 主分类号： C07D23930
- IPC分类号： C07D23930
摘要：
The invention relates to a method for the preparation of 4,6-dichloropyrimidine by reacting 4-chloro-6-methoxypyrimidine with phosgene as chlorinating agent in the presence of a nitrogen-containing auxiliary.