%0 Journal Article
%T Synthesis of Bis-ureas from Bis(o-nitrophenyl) Carbonate
%A Maria-Cristina Turoczi
%A Monika Simon
%A Valentin Badea
%A Carol Csunderlik
%J Molecules
%D 2008
%I MDPI AG
%R 10.3390/molecules13123192
%X A general method for the preparation of bis-ureas from bis(o-nitrophenyl) carbonate has been developed. Directional urea synthesis is achieved by sequential amine addition to bis(o-nitrophenyl) carbonate in two steps: in the first step bis(o-nitrophenyl) carbonate is reacted with benzylamine to form benzyl-o-nitrophenyl carbamate; in the second step the carbamate is reacted with a variety of diamines in toluene to yield bis-ureas.
%K Bis(o-nitrophenyl) carbonate
%K Carbamate
%K Bis-urea
%U http://www.mdpi.com/1420-3049/13/12/3192