作者:Francesco Saliu、Bruno Rindone
DOI:10.1016/j.tetlet.2010.09.107
日期:2010.12
A new solventless method for the synthesis of symmetrical and unsymmetrical ureas, starting from ethylene carbonate and amines, is reported. 1,5,7-Triazabicyclo[4.4.0]dec-5-ene(TBD) and thioureas have been found to be efficient organocatalysts for this reaction.
报道了一种从碳酸亚乙酯和胺开始合成对称和不对称脲的无溶剂新方法。已发现1,5,7-三氮杂双环[4.4.0]癸-5-烯(TBD)和硫脲是该反应的有效有机催化剂。