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    Process for the preparation of 2-aminomethylpiperidine
    1.
    发明申请
    Process for the preparation of 2-aminomethylpiperidine 审中-公开
    2-氨基甲基哌啶的制备方法

    公开(公告)号：US20080188665A1

    公开(公告)日：2008-08-07

    申请号：US12005008

    申请日：2007-12-20

    申请人： Stefan Antons ,  Claus Dreisbach

    发明人： Stefan Antons ,  Claus Dreisbach

    IPC分类号： C07D211/26

    CPC分类号： C07D211/26 ,  C07D211/02

    摘要： The invention relates to a process for the preparation of aminomethylpyridines of the general formula (I) by hydrogenation of cyanopyridines of the general formula (II) with hydrogen under increased pressure optionally in the presence of a catalyst containing Ni, Fe or Co and optionally in the presence of ammonia.

    摘要翻译： 本发明涉及一种制备通式（I）的氨基甲基吡啶的方法，通过氢化在通式（II）的氰基吡啶与氢气在氢气下，任选地在含有Ni，Fe或Co的催化剂和任选的 氨的存在。

    Process for preparing fluorinated benzyl alcohols and fluorinated benzaldehydes
    3.
    发明授权
    Process for preparing fluorinated benzyl alcohols and fluorinated benzaldehydes 失效
    制备氟化苄醇和氟化苯甲醛的方法

    公开(公告)号：US6127581A

    公开(公告)日：2000-10-03

    申请号：US369987

    申请日：1999-08-06

    申请人： Jurgen Wiedemann ,  Albrecht Marhold ,  Claus Dreisbach

    发明人： Jurgen Wiedemann ,  Albrecht Marhold ,  Claus Dreisbach

    IPC分类号： B01J23/44 ,  B01J31/02 ,  C07B61/00 ,  C07C29/141 ,  C07C29/153 ,  C07C33/46 ,  C07C45/63 ,  C07C47/55

    CPC分类号： C07C29/141 ,  C07C45/63

    摘要： Fluorinated benzaldehydes are obtainable in a simple and inexpensive manner and in significantly improved yields when chlorinated benzaldehydes are reacted with alkali metal fluorides at temperatures in the range from about 130 to 200.degree. C. in the presence of less than about 2 mol % of quaternary phosphonium salts, based on chlorine atoms to be replaced, at initial concentrations of more than 2.5 mol of the chlorinated benzaldehydes per kg of dipolar aprotic solvent. Fluorinated benzaldehydes obtained in this way can advantageously be hydrogenated with hydrogen in the presence of noble metal catalysts to give fluorinated benzyl alcohols.

    摘要翻译： 氟化苯甲醛可以以简单和便宜的方式获得，并且当氯化苯甲醛与碱金属氟化物在约130至200℃的温度下在少于约2mol％季鏻的存在下反应时，可以显着提高产率 盐，基于待替代的氯原子，初始浓度超过2.5摩尔氯化苯甲醛/ kg偶极非质子溶剂。 以这种方式获得的氟化苯甲醛可以有利地在贵金属催化剂存在下用氢气氢化，得到氟化苄醇。