发明授权
US4267349A Process for the preparation of
2-substituted-alkyl-1-alkyl-nitroimidazoles
失效
2-取代 - 烷基-1-烷基 - 硝基咪唑的制备方法
- 专利标题： Process for the preparation of 2-substituted-alkyl-1-alkyl-nitroimidazoles
- 专利标题（中）： 2-取代 - 烷基-1-烷基 - 硝基咪唑的制备方法
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申请号： US119926申请日： 1980-02-08
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公开(公告)号： US4267349A公开(公告)日： 1981-05-12
- 发明人: Helmut Hagen , Rolf-Dieter Kohler
- 申请人： Helmut Hagen , Rolf-Dieter Kohler
- 申请人地址： DEX
- 专利权人： BASF Aktiengesellschaft
- 当前专利权人： BASF Aktiengesellschaft
- 当前专利权人地址： DEX
- 优先权： DEX2827351 19780622
- 主分类号： C07D233/92
- IPC分类号： C07D233/92 ; C07D233/93 ; C07D233/94
摘要：
Novel 2-substituted 1-alkyl-nitroimidazoles and a process for their preparation by reaction of 2-methyl-nitroimidazoles with oxalic acid diesters, followed by reaction of the resulting nitroimidazol-2-yl-pyruvic acid esters with chlorine, in turn followed, if desired, by reaction of the resulting 2-dihalomethyl-nitroimidazoles with water.Both the novel and the known compounds obtainable by the process of the invention are valuable starting materials for the preparation of dyes, pesticides and drugs.
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