ELECTROCHEMICAL PRODUCTION OF STERICALLY HINDERED AMINES
    27.
    发明申请
    ELECTROCHEMICAL PRODUCTION OF STERICALLY HINDERED AMINES 有权
    电化学生产异构化胺

    公开(公告)号:US20090253937A1

    公开(公告)日:2009-10-08

    申请号:US12306616

    申请日:2007-06-27

    IPC分类号: C07C209/30

    摘要: The present invention relates to a process for preparing an amine, which comprises the step cathodic reduction of a corresponding oxime derivative of the general formula (I) where R is C1-6-alkyl or C2-6-alkenyl which is optionally substituted by one or more substituents selected independently from the group consisting of phenyl, O—C1-6-alkyl, NH—C1-6-alkyl, N(C1-6-alkyl)2, OH and NH2; R1 is H; C1-6-alkyl or C(O)—C1-6-alkyl and A is a 5-, 6- or 7-membered hydrocarbon ring which is saturated or has a double bond and in which at least one CH2 group may, if appropriate, be replaced by —O—, —S— —NH—, —N═ or —N(C1-6-alkyl)- and which may optionally be substituted by one or more further substituents selected independently from the group consisting of phenyl, C1-6-alkyl, O—C1-6-alkyl, NH—C1-6-alkyl, N(C1-6-alkyl)2, OH and NH2; wherein, based on the ring carbon bearing the substituent R, the oxime derivative has an excess of the R or S form of at least 10%.

    摘要翻译: 本发明涉及一种制备胺的方法,其包括通式(I)的相应肟衍生物的步骤阴极还原,其中R是C 1-6 - 烷基或任选被一个取代基取代的C 2-6 - 烯基 或更多取代基独立地选自苯基,O-C 1-6 - 烷基,NH-C 1-6 - 烷基,N(C 1-6 - 烷基)2,OH和NH 2; R1是H; C 1-6 - 烷基或C(O)-C 1-6 - 烷基,A是饱和或具有双键并且其中至少一个CH 2基团的5-,6-或7-元烃环,如果 适当地被-O - , - N - , - N-或-N(C 1-6 - 烷基)取代,并且其可以任选地被一个或多个另外的取代基取代,所述取代基独立地选自苯基 ,C 1-6 - 烷基,O-C 1-6 - 烷基,NH-C 1-6 - 烷基,N(C 1-6 - 烷基)2,OH和NH 2; 其中,基于带有取代基R的环碳,肟衍生物具有至少10%的R或S形式的过量。