Process for preparing n-substituted lactams
    1.
    发明授权
    Process for preparing n-substituted lactams 失效
    制备n-取代内酰胺的方法

    公开(公告)号:US3865814A

    公开(公告)日:1975-02-11

    申请号:US38246173

    申请日:1973-07-25

    Applicant: INVENTA AG

    CPC classification number: C07D207/267 C07D227/087

    Abstract: A process for the preparation of N-substituted lactams of the formula

    WHEREIN A is a substituted or unsubstituted aliphatic hydrocarbon chain having 3 to 11 carbon atoms, said substituents comprising one or more alkyl groups each having 1 to 4 carbon atoms; and R is hydrogen or a hydrocarbon radical having 1 to 17 carbon atoms, comprising reacting at least one starting lactam of the formula

    WITH AN ORGANIC HALOGEN COMPOUND OF THE FORMULA X - CH2-R wherein X is chlorine, bromine or iodine, in the presence of an alkali metal hydroxide in solid form or in at least 50% aqueous solution at a reaction temperature of from 20*C to 120*C.

    Abstract translation: 制备式(III)的N-取代的内酰胺的方法是取代或未取代的具有3至11个碳原子的脂族烃链,所述取代基包括一个或多个各自具有1至4个碳原子的烷基; 并且R是氢或具有1至17个碳原子的烃基,其包括使式的至少一种起始内酰胺与式X-CH 2 -R的有机卤素化合物反应,其中X为氯,溴或碘, 的固体形式的碱金属氢氧化物或在20℃至120℃的反应温度下的至少50%的水溶液中。

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