作者:Maria-Cristina Turoczi、Monika Simon、Valentin Badea、Carol Csunderlik
DOI:10.3390/molecules13123192
日期:——
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
已经开发了一种从双(邻硝基苯基)碳酸酯制备双脲的通用方法。定向尿素合成是通过连续胺加成到双(邻硝基苯基)碳酸酯分两步实现的:第一步,双(邻硝基苯基)碳酸酯与苄胺反应生成苄基-邻硝基苯基氨基甲酸酯;在第二步中,氨基甲酸酯在甲苯中与多种二胺反应生成双脲。