PROCESS FOR PREPARATION OF PHENETHYLAMINE DERIVATIVES
    5.
    发明申请
    PROCESS FOR PREPARATION OF PHENETHYLAMINE DERIVATIVES 审中-公开
    制备苯乙胺衍生物的方法

    公开(公告)号:WO2004080934A3

    公开(公告)日:2004-10-28

    申请号:PCT/US2004007861

    申请日:2004-03-09

    摘要: A process for the preparation of a compound of formula (I), wherein R1, and R2 are ortho or para substituents, independently selected from the group consisting of hydrogen, hydroxyl, C1-C6 alkyl, C1-C6 alkoxy, C7-C9 aralkoxy, C2-C7 alkanoyloxy, C1-C6 alkylmercapto, halo and trifluoromethyl; R3 is hydrogen or C1-C6 alkyl; R4 is hydrogen, C1-C6 alkyl, formyl or C2-C7 alkanoyl; n is one of the integers 0, 1, 2, 3 or 4; and the dotted line represents optional olefinic unsaturation; comprising hydrogenating a compound of formula (III), in the presence of a nickel or cobalt catalyst at a temperature of about 5°C to 25°C.

    摘要翻译: 制备式(I)化合物的方法,其中R 1和R 2是邻位或对位取代基,独立地选自氢,羟基,C 1 -C 6烷基,C 1 -C 6烷氧基,C 7 -C 9芳烷氧基 ,C 2 -C 7烷酰氧基,C 1 -C 6烷基巯基,卤素和三氟甲基; R3是氢或C1-C6烷基; R4是氢,C1-C6烷基,甲酰基或C2-C7链烷酰基; n是整数0,1,2,3或4中的一个; 虚线代表任选的烯属不饱和度; 包括在镍或钴催化剂存在下在约5℃至25℃的温度下氢化式(III)的化合物。