作　　者： ; ;

机构地区： 广东医学院药学院

出　　处： 《化学研究与应用》 2009年第10期1477-1480,共4页

摘　　要： It was investigated that the reaction of 4,4′-diphenylmethanediamine(MDA)with CO2 and bromoethane to synthesize diethyl 4,4′-diphenylmethanedicarbamate(MDC)under the catalysis of Cs2CO3 cooperating with DBU in supercritical carbon dioixide.The optimum reaction conditions were MDA(10mmol),EtBr(30mmol),Cs2CO3(6mmol)as catalyst cooperating with DBU(30mmol),a temperature of 60 °C,a pressure of 8 MPa,and a reaction time of 4 hours.MDC was obtained in the yield of 88% under the optimum reaction condtions. It was investigated that the reaction of 4,4＇-diphenylmethanediamine （MDA）with CO2 and bromoethane to synthesize diethyl 4,4＇-diphenylmethanedicarbamate （ MDC ） under the catalysis of Cs2 CO3 cooperating with DBU in supercritical carbon dioixide. The optimum reaction conditions were MDA （ 10retool）, EtBr（ 30mmol）, Cs2 CO3 （6mmol） as catalyst cooperating with DBU （30mmol） ,a temperature of 60℃ ,a pressure of 8 MPa, and a reaction time of 4 hours. MDC was obtained in the yield of 88% under the optimum reaction condtions.

关 键 词： 超临界二氧化碳 二氨基二苯甲烷 溴乙烷 二苯甲烷二氨基甲酸乙酯

领　　域： [理学] [理学]