This invention relates to the synthesis of N-(monosubstituted)dithiooxamides by the transamination of dithiooxamide. Preferred methods, according to the present invention, take advantage of the discovery that yields of N-(monosubstituted)dithiooxamides can be improved in the Wallach Reaction by: controlling the temperature of the reaction mixture; optimizing the initial concentration of the reactants; adding an effective amount of acid in the quenching or processing procedure; and/or, optionally, adding an effective amount of certain nitrogen bases to the reaction mixture.
本发明涉及通过二
硫代草酰胺的转
氨化合成N-(单取代)二
硫代草酰胺的方法。根据本发明,优选的方法利用了发现,在Wallach反应中可以通过控制反应混合物的温度,优化反应物的初始浓度,向淬灭或处理过程中添加有效的酸量,和/或选择性地向反应混合物中添加一定量的某些氮碱,从而提高N-(单取代)二
硫代草酰胺的产率。