Method of producing amino carboxylic acids
    68.
    发明授权
    Method of producing amino carboxylic acids 失效
    制备氨基羧酸的方法

    公开(公告)号:US06916947B2

    公开(公告)日:2005-07-12

    申请号:US10303078

    申请日:2002-11-25

    CPC分类号: C07C227/06 C07C229/08

    摘要: The present invention is directed to a method for producing amino acids by reacting halogenated carboxylic acid ester (haloacid esters) with a metal cyanate in the presence of an alcohol and by subsequent acidic saponification of the urethane carbonic acid formed. The method is characterized by the metal cyanate being placed at an elevated temperature in an organic solvent and the other reactants being continuously charged into the mixture over a defined time period.

    摘要翻译: 本发明涉及通过卤化羧酸酯(卤代酸酯)与金属氰酸酯在醇的存在下反应并随后所形成的氨基甲酸酯碳酸进行酸性皂化来制备氨基酸的方法。 该方法的特征在于将金属氰酸盐置于高温下在有机溶剂中,其它反应物在规定的时间段内连续加入到混合物中。