Synthesis of urea derivatives from amines and CO2 in the absence of catalyst and solvent
作者:Chaoyong Wu、Haiyang Cheng、Ruixia Liu、Qiang Wang、Yufen Hao、Yancun Yu、Fengyu Zhao
DOI:10.1039/c0gc00059k
日期:——
Urea derivatives are obtained in mild to good yield from the reactions of primary aliphatic amines with CO2 in the absence of any catalysts, organic solvents or other additives. To optimize reaction conditions, experimental variables including temperature, pressure, the concentration of amine, reaction time etc. were studied. Satisfactory yields were obtained at the optimized conditions that are comparable
尿素 从 脂肪族伯胺用CO 2在没有任何催化剂, 有机的 溶剂或其他添加剂。为了优化反应条件,研究了温度,压力,胺浓度,反应时间等实验变量。在优化的条件下获得了令人满意的产量,与存在下的可比性相当。催化剂 和 溶剂。对反应机理的初步研究表明,烷基氨基甲酸烷基铵迅速形成了中间体,然后通过分子内脱水形成了最终产物。