
Molecules p. 3192 - 3197 (2008)
Update date:2022-08-03
Topics:
Turoczi, Maria-Cristina
Simon, Monika
Badea, Valentin
Csunderlik, Carol
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.
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Doi:10.1021/ja01307a003
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(2009)Doi:10.1016/j.tet.2006.12.050
(2007)Doi:10.1002/ejoc.200800954
(2009)Doi:10.1039/b821630d
(2009)