Preparation of bromoacetamides
    10.
    发明授权
    Preparation of bromoacetamides 失效
    溴乙酰胺的制备

    公开(公告)号:US4663481A

    公开(公告)日:1987-05-05

    申请号:US673091

    申请日:1984-11-19

    Applicant: John D. Jones

    Inventor: John D. Jones

    CPC classification number: C07D317/68 C07C231/06 C07C233/12

    Abstract: Bromoacetamides of the formula ArCONHCH(Br)CONH.sub.2 are obtained by addition to bromine of a solution of ArCONHCH.sub.2 CN in a saturated aliphatic carboxylic acid preferably glacial acetic or propionic acid. This is an improvement in a process described in European Patent Specification No. 0059536 in which the bromine is added to a solution of the cyanomethylbenzamide, enabling consistently high yields (e.g. 75 to 90%) to be obtained.

    Abstract translation: 通过在饱和脂肪族羧酸优选冰醋酸或丙酸中加入ArCONHCH2CN溶液的溴,得到式ArCONHCH(Br)CONH 2的溴乙酰胺。 这是在欧洲专利说明书No.0059536中描述的方法中的改进,其中溴被加到氰基甲基苯甲酰胺的溶液中,能够获得一致的高产率(例如75-90%)。

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