Synthesis of 2-Oxo-3-phenylimidazolidine-1-carbonyl chloride

Abstract

The reaction of phosgene with N-methyl-N-phenylethane-1,2-diamine, with N-phenylethane-1,2-diamine and with 1-phenylimidazolidin-2-one, gives in each case 2-oxo-3-phenylimidazolidine-1-carbonyl chloride. This acid chloride reacts with ammonia to form 1,1'-carbonylbis(3- phenylimidazolidin-2-one).