Method for the preparation of 4-alkylprolines and compounds produced thereby
    81.
    发明授权
    Method for the preparation of 4-alkylprolines and compounds produced thereby 失效
    制备4-烷基丙烯酸酯及其制备的化合物的方法

    公开(公告)号:US3636043A

    公开(公告)日:1972-01-18

    申请号:US3636043D

    申请日:1969-02-04

    Applicant: UPJOHN CO

    CPC classification number: C07D207/22 C07D207/16 C07D207/24

    Abstract: 4- ALKYLPROLINES ARE PREPARED IN TELATIVELY HIGH YIELDS BY REACTING A 2-ALKYLACROLEIN WITH A DIALKY N-ALKANOYLAMIDOMALONATE, DEHYDRATING THE OBTAINED 4-ALKYLPYRROLIDINE, AND THEREAFTER HYDROLYZING, DECARBOXYLATING, AND CATALYTICALLY HYDROGENATING THE PRODUCED 4-ALKYL-4-PYRROLINE. THE 4-ALKYL-PROLINES ARE USEFUL AS INTERMEDIATES FOR THE PREPARATION OF 4-ALKYL-PROLINES ARE USEFUL AS INTERMEDIATES FOR THE PREPARATION OF 4-ALKYLHYGRIC ACIDS WHICH, IN TURN, ARE A SOURCE OF COMPONENT ACIDS THAT ARE REACTED WITH AMINO SUGARS TO FORM ANTIBIOTICS OF THE LINCOMYCIN TYPE.

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