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Molecules 2008, 13(12), 3192-3197; doi:10.3390/molecules13123192

Synthesis of Bis-ureas from Bis(o-nitrophenyl) Carbonate

“POLITEHNICA” University of Timisoara, Department of Applied Chemistry and Engineering of Organic and Natural Compounds, 300006 Timisoara, Piata Victoriei 2, Romania
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Received: 18 November 2008 / Revised: 28 November 2008 / Accepted: 3 December 2008 / Published: 15 December 2008
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Abstract

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.
Keywords: Bis(o-nitrophenyl) carbonate; Carbamate; Bis-urea Bis(o-nitrophenyl) carbonate; Carbamate; Bis-urea
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Turoczi, M.-C.; Simon, M.; Badea, V.; Csunderlik, C. Synthesis of Bis-ureas from Bis(o-nitrophenyl) Carbonate. Molecules 2008, 13, 3192-3197.

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