&bgr;-lactam production
    1.
    发明授权
    &bgr;-lactam production 失效
    β-内酰胺生产

    公开(公告)号:US06777549B2

    公开(公告)日:2004-08-17

    申请号:US10119548

    申请日:2002-04-10

    IPC分类号: C07D50136

    摘要: A process for the production of a compound of formula comprising i) silylating a compound of formula then reacting a resulting with a compound of formula R′BS—X′  IVB wherein R′B is hydrogen or trialkysilyl and X′ is as defined above, in the presence of a compound of formula wherein R2, R3 and R4 independently of each another are aryl or alkyl, and R5 is alkyl, perfluorinated alkyl, or aryl; and isolating the desired product.

    摘要翻译: 制备化学式的化合物的方法)甲磺酰化所得化合物与式Ⅳ所得化合物的反应是氢或三烷基甲硅烷基,X'如上所定义,在甲醛化合物的存在下,R2,R3 和R 4彼此独立地是芳基或烷基,R 5是烷基,全氟化烷基或芳基; 拆分所需产品。