Theoretical investigation on the mechanisms of transfer hydrogenation of ketones catalyzed by iridium complexes

被引:33
作者
Bi, Siwei [1 ,2 ]
Xie, Qingming [1 ]
Zhao, Xiaoran [1 ]
Zhao, Yanyun [1 ]
Kong, Xiaojian [2 ]
机构
[1] Qufu Normal Univ, Coll Chem Sci, Qufu 273165, Shandong, Peoples R China
[2] Shandong Univ, Key Lab Educ, Minist Colloid & Interface Chem, Jinan 250100, Peoples R China
基金
中国国家自然科学基金;
关键词
transfer hydrogenation; ketone; iridium catalyst; catalytic cycle; DFT;
D O I
10.1016/j.jorganchem.2007.11.043
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The detailed catalytic mechanisms on transfer hydrogenation of ketones are explored by employing the representative reaction of 3-pentanone and 2-propanol catalyzed by the model complex IrH3[(Me2PC2H4)(2)NH], derived from the catalyst IrH3[((Pr2PC2H4)-Pr-i)(2)NH], with the aid of the density functional theory calculations. The geometrical transformation from an octahedron to a Y-type involved in the catalytic cycle is also elucidated in terms of molecular theory of transition metal complexes. The trend for the variation of Ir-N bond distance is also analyzed. (C) 2007 Elsevier B. V. All rights reserved.
引用
收藏
页码:633 / 638
页数:6
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