Recyclable ionic liquid-bridged chiral dimeric salen Mn(III) complexes for oxidative kinetic resolution of racemic secondary alcohols

被引：18
|
作者：
Li, Chengyong [1 ]
Zhao, Jiangfeng [1 ]
Tan, Rong [1 ]
Peng, Zhigang [1 ]
Luo, Rongchang [1 ]
Peng, Ming [1 ]
Yin, Donghong [1 ,2 ]
机构：
[1] Hunan Normal Univ, Inst Fine Catalysis & Synth, Changsha 410081, Hunan, Peoples R China
[2] China Tobacco Hunan Ind Corp, R&D Ctr, Changsha 410014, Hunan, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2011年 / 15卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Chiral dimeric salen Mn(III) complexes; Ionic liquids (ILs); Catalysis; Secondary alcohols; Oxidative kinetic resolution; MOLECULAR-OXYGEN; CATALYSTS; EPOXIDATION; MECHANISM; SILICA;
D O I：
10.1016/j.catcom.2011.08.009
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Novel chiral dimeric salen Mn(III) complexes bridged with N,N-dialkylimidazolium ionic liquids (ILs) at the C-5 position of the salicylaldehyde moieties were designed and synthesized. The Its-bridged complexes presented excellent enantioselectivity and catalytic activity in the oxidative kinetic resolution of a-methyl benzyl alcohol, using diacetoxyiodobenzene as oxidant. The complexes combined the high catalytic efficiency of the active centers and the special solubility of the ILs, thus exhibiting notable efficacy of oxidative kinetic resolution and facile recovery from the reaction system by changing the solvent. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：27 / 31
页数：5
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