Aminoacid hydrochlorides or diaminoacid dihydrochlorides are produced by first reacting a halocarboxylic acid ester with an alkali metal cyanate in the presence of an alcohol to form the corresponding mono- or diurethane and then saponifying this to the corresponding mono- or dihydrochloride. The new process is relatively versatile in its use and above all opens up an elegant synthesis route for lysine.
氨基酸盐酸盐或二
氨基酸二盐酸盐是通过首先将卤代
羧酸酯与碱
金属
氰酸盐在醇的存在下反应,形成相应的单醚或
二醚,然后皂化成相应的单盐酸盐或二盐酸盐来制备的。这种新工艺在使用上相对灵活,尤其为赖
氨酸开辟了一条优雅的合成途径。