Process for the preparation of (schiff bases of)alpha-alkyl-alpha-amino acid amides
    9.
    发明公开
    Process for the preparation of (schiff bases of)alpha-alkyl-alpha-amino acid amides 有权
    阿司匹林(Schiff'schen Basen von)阿尔法烷基-α-氨基阿拉伯胶

    公开(公告)号:EP1172354A2

    公开(公告)日:2002-01-16

    申请号:EP01202396.6

    申请日:2001-06-20

    申请人: DSM N.V.

    IPC分类号: C07C249/02

    摘要: Process for the preparation of a Schiff base of an α-alkyl-α-amino acid amide and an aldehyde, wherein the corresponding α-aminonitrile is contacted with a base and the aldehyde and wherein it is ensured that the reagents are in good contact. The Schiff base obtained may be further hydrolysed to form the α-alkyl-α-amino acid amide and the aldehyde.
    Preferably a substituted or unsubstituted benzaldehyde is used as the aldehyde. The reaction is preferably carried out in a practically homogeneously mixed phase obtained by using a solvent, for example methanol or ethanol. Preferably NaOH or KOH is used as the base.

    摘要翻译: 制备α-烷基-α-氨基酸酰胺和醛的席夫碱的方法,其中相应的α-氨基腈与碱和醛接触,其中确保试剂良好接触。 获得的席夫碱可以进一步水解形成α-烷基-α-氨基酸酰胺和醛。 优选使用取代或未取代的苯甲醛作为醛。 反应优选在通过使用溶剂例如甲醇或乙醇获得的实际上均匀混合相中进行。 优选使用NaOH或KOH作为碱。