发明名称 Process for the preparation of 2-amino-2-arylethanols and novel intermediates
摘要 The invention relates to a novel process for the preparation of 2-amino-2-arylethanols of the formula (I) <IMAGE> (I) in which Ar represents aryl or hetaryl each unsubstituted or identically or differently monosubstituted to pentasubstituted, where as substituents there may be mentioned: halogen, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, unsubstituted substituted cycloalkyloxy or unsubstituted or substituted phenyl, which comprises catalytically hydrogenating alpha -hydroxyketoximes of the formula (II) <IMAGE> (II) in which Ar has the meaning given above, using Raney nickel or Raney cobalt in the presence of a diluent and in the presence of a base and novel 2-amino-2-arylethanols and novel alpha -hydroxyketoximes.
申请公布号 US5602282(A) 申请公布日期 1997.02.11
申请号 US19950511207 申请日期 1995.08.04
申请人 BAYER AKTIENGESELLSCHAFT 发明人 LANTZSCH, REINHARD;KYSELA, ERNST;MARHOLD, ALBRECHT
分类号 B01J25/02;C07B61/00;C07C213/02;C07C215/28;C07C217/64;C07C249/08;C07C251/48;(IPC1-7):C07C213/00 主分类号 B01J25/02
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