Effect of Metal Salen Complex in the Base Catalyzed Catalytic Reaction between Carbon Dioxide and Epoxides
作者:Shin-Guang Shyu、Chia-Kai Tseng、Chun-Kai Chang、Hung-Po Chen、Hsin-Chih Liu、Jen Twu
DOI:10.1002/jccs.201100670
日期:2012.3
Lewis bases, 4‐dimethylaminopyridine (DMAP), triethylamine (Et3N) and 1,8‐diazabicyclo[5,4,0]undec‐7‐ene (DBU) can catalyze the reaction between carbon dioxide and epoxide to produce cyclic carbonate. The activity of the catalysts reduces as the pressure of carbon dioxide increases. Most of the metal salen complexes N,N′‐bis(3,5‐di‐tert‐butylsalicylidene)‐1,2‐cyclohexanediamine M(III) X (M = Cr, Mn
Lewis碱,4-二甲基氨基吡啶(DMAP),三乙胺(Et 3 N)和1,8-二氮杂双环[5,4,0]十一碳-7-烯(DBU)可以催化二氧化碳与环氧化物之间的反应,生成环状碳酸酯。随着二氧化碳压力的增加,催化剂的活性降低。大多数金属塞伦络合物N,N'-双(3,5-二叔丁基水杨基)-1,2-环己二胺M(III)X(M = Cr,Mn,X = Cl; M = Co,X = OAC)和ñ,ñ ' -双(3,5-二-叔叔丁基水杨基亚胺1,2-环己二胺M(II)(M = Cu,Co,Ni)可以促进催化剂的催化活性,促进能力的变化取决于在Salen络合物中使用的金属类型以及路易斯碱催化剂。