Alpha-nitro-cinnamic acid derivatives
    2.
    发明授权
    Alpha-nitro-cinnamic acid derivatives 失效
    阿尔法 - 硝酸 - 氨基酸衍生物

    公开(公告)号:US3832387A

    公开(公告)日:1974-08-27

    申请号:US23542172

    申请日:1972-03-16

    CPC classification number: C07C205/53 C07C201/10

    Abstract: Alpha -nitro-cinnamic acid derivatives which are useful in preparing phenylalanines, and a process for obtaining the derivatives by treating the corresponding cinnamic acid esters with nitric oxide or nitrogen dioxide.

    Abstract translation: 可用于制备苯丙氨酸的α-硝基肉桂酸衍生物,以及通过用一氧化氮或二氧化氮处理相应的肉桂酸酯来获得衍生物的方法。

    Halogenation of steroids
    3.
    发明授权
    Halogenation of steroids 失效
    杀虫剂

    公开(公告)号:US3716530A

    公开(公告)日:1973-02-13

    申请号:US3716530D

    申请日:1971-08-10

    CPC classification number: C07J13/007 C07J5/0053 C07J7/0045

    Abstract: A process for converting 17 Alpha -vinyl-17 Beta -hydroxy steroids to 17-(2-haloethylidene)-steroids, known intermediates for antifungal and progestational agents, by treating the 17 Alpha -vinyl-17 Beta -hydroxy steroids with vanadium tetrahalide.

    Abstract translation: 通过用四卤化钒处理17α-乙烯基-17β-羟基类固醇,将17α-乙烯基-17β-羟基类固醇转化为17-(2-卤代亚乙基) - 类固醇,已知的抗真菌和促孕剂中间体的方法。

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