In the process for the production of the ethyl ester of aminocyanoacetic acid by reduction of the ethyl ester of nitrosocyanoacetic acid, the improvement of hydrogenating the ethyl ester of nitrosocyanoacetic acid in a low-boiling polar solvent in the presence of Raney nickel at an excess pressure with hydrogen of 1 to 10 atms. and at a temperature of 10.degree. C. for 40 hours to 60.degree. C. for 8 hours.
在生产
氨基
氰乙酸乙酯的过程中,通过还原亚硝基
氰乙酸乙酯的
乙酯酯改进了方法,即在低沸点极性溶剂中,在过量压力下使用Raney
镍和
氢气,在10℃的温度下反应40小时到60℃的温度下反应8小时。