Processes for producing .alpha.-aminonitrile derivatives and
.alpha.-amino acids
    34.
    发明授权
    Processes for producing .alpha.-aminonitrile derivatives and .alpha.-amino acids 失效
    制备α-氨基腈衍生物和α-氨基酸的方法

    公开(公告)号:US6100419A

    公开(公告)日:2000-08-08

    申请号:US213904

    申请日:1998-12-17

    CPC分类号: C07C253/08 C07C227/20

    摘要: In the presence of a metal catalyst such as a samarium compound, an oxime ester compound shown by the formula (1): ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 are the same or different from each other, and each represents a non-reactive atom or a non-reactive organic group; and R.sup.2 and R.sup.3, together with the adjacent carbon atom, may bond together to form a ringis reacted with a cyanogenation agent such as an .alpha.-cyanohydrin compound (e.g., acetone cyanohydrin)to form an .alpha.-aminonitrile derivative. By hydrolyzing the .alpha.-aminonitrile derivative, the corresponding .alpha.-amino acid or a salt thereof can be obtained. According to the above processes, an .alpha.-aminonitrile derivative and an .alpha.-amino acid can be obtained in high yields.

    摘要翻译: 在诸如钐化合物的金属催化剂存在下,由式(1)表示的肟酯化合物:其中R1,R2和R3彼此相同或不同,并且各自表示非反应性原子或 非反应性有机基团; 并且R2和R3与相邻碳原子一起可以键合在一起形成环,与氰化剂如α-氰基醇化合物(例如丙酮氰醇)反应形成α-氨基腈衍生物。 通过水解α-氨基腈衍生物,可以得到相应的α-氨基酸或其盐。 根据上述方法,可以高产率获得α-氨基腈衍生物和α-氨基酸。