MCM-41固载的(1R,2R)-1,2-环己二胺与Ru(II))复合催化剂的合成、表征及不对称氢转移反应的催化应用  

Synthesis, Characterization and Catalytic Applications of (1R, 2R)-1,2-diaminocyclohexane and Ruthenium(II) Complexes Immobilized on Mesoporous Molecular Sieve MCM-41

作　　者：聂春发[1] 索继栓[1] 

机构地区：[1]中国科学院兰州化学物理研究所羰基合成与选择氧化国家重点实验室

出　　处：《分子催化》2004年第1期61-64,共4页Journal of Molecular Catalysis(China)

摘　　要：Immobilized asymmetric hydrogen transfer catalyst was synthesized by surface modification of mesoporous molecular sieve MCM-41 using 3-cholorpropyl-triethoxysilane as modifier, and then being treated with (1R, 2R)-1,2-diaminocyclohexane and dichloro(p-cymene)-ruthenium dimmer successively. The prepared catalyst was characterized by means of FT-IR, PXRD and N\-2 adsorption-desorption isotherms, and was applied in asymmetric hydrogen transfer reaction of reduction of acetophenone to α-phenyl ethanol. It showed a average conversion of 4.02% and 15.23% of ee in all 3 performances. The conversion was almost the same as its corresponding homogenous counterpart, while the ee was somewhat lower.Immobilized asymmetric hydrogen transfer catalyst was synthesized by surface modification of mesoporous molecular sieve MCM-41 using 3-cholorpropyl-triethoxysilane as modifier, and then being treated with (1R, 2R)-1,2-diaminocyclohexane and dichloro(p-cymene)-ruthenium dimmer successively. The prepared catalyst was characterized by means of FT-IR, PXRD and N\-2 adsorption-desorption isotherms, and was applied in asymmetric hydrogen transfer reaction of reduction of acetophenone to α-phenyl ethanol. It showed a average conversion of 4.02% and 15.23% of ee in all 3 performances. The conversion was almost the same as its corresponding homogenous counterpart, while the ee was somewhat lower.

关 键 词：介孔分子筛MCM^41 手性功能化 不对称氢转移反应 固载催化剂 

分 类 号：O643.32[理学—物理化学]