发明公开
EP0882004A1 VERBESSERTES VERFAHREN ZUR HERSTELLUNG VON HALOGENMETHYLCYCLOPROPANEN UND BESONDERS REINE HALOGENMETHYLCYCLOPROPANE
失效
改进方法卤素甲基环丙烷和特别PURE卤素甲基丙CYCLO的制备
- 专利标题： VERBESSERTES VERFAHREN ZUR HERSTELLUNG VON HALOGENMETHYLCYCLOPROPANEN UND BESONDERS REINE HALOGENMETHYLCYCLOPROPANE
- 专利标题（英）： Improved process for the production of halogen methyl cyclopropanes and highly pure halogen methyl cyclopropanes
- 专利标题（中）： 改进方法卤素甲基环丙烷和特别PURE卤素甲基丙CYCLO的制备
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申请号： EP97903252.0申请日： 1997-02-10
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公开(公告)号： EP0882004A1公开(公告)日： 1998-12-09
- 发明人: KOMOSCHINSKI, Joachim , GEHRING, Reinhold
- 申请人： BAYER AG
- 申请人地址： 51368 Leverkusen DE
- 专利权人： BAYER AG
- 当前专利权人： BAYER AG
- 当前专利权人地址： 51368 Leverkusen DE
- 优先权： DE19961006761 19960223
- 国际公布： WO1997030958 19970828
- 主分类号： C07C17
- IPC分类号： C07C17 ; C07C22
摘要：
In an improved process for the production of halogen methyl cyclopropanes of formula (I) in which Hal is chlorine or bromine and R1 to R5 are mutually independently hydrogen, optionally substituted C¿1?-C10 alkyl or optionally substituted C6-C10 aryl, the corresponding hydroxymethyl propanes are mixed with chlorine or bromine and an organic phosphorus compound, and chlorine or bromine is reacted in an excess of at least 5 mol % (in relation to te hydroxymethyl cyclopropane). It is thus possible to obtain highly pure products containing little 1-halogen-3-butene.
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