Chiral Cobalt(III) Complexes as Bifunctional BrOnsted Acid-Lewis Base Catalysts for the Preparation of Cyclic Organic Carbonates

被引：84

作者：

Rulev, Yuri A. ^{[1
]}

Larionov, Vladimir A. ^{[1
]}

Lokutova, Anastasia V. ^{[1
]}

Moskalenko, Margarita A. ^{[1
]}

Lependina, Ol'ga L. ^{[1
]}

Maleev, Victor I. ^{[1
]}

North, Michael ^{[2
]}

Belokon, Yuri N. ^{[1
]}

机构：

[1] AN Nesmeyanov Organoelement Cpds Inst, Moscow 19991, Russia

[2] Univ York, Dept Chem, Green Chem Ctr Excellence, York YO10 5DD, N Yorkshire, England

来源：

CHEMSUSCHEM | 2016年 / 9卷 / 02期

关键词：

carbon dioxide; catalyst; cyclic carbonate; epoxide; kinetic resolution; HOMOGENEOUS CATALYST; OCTAHEDRAL COMPLEXES; CHEMICAL FIXATION; PHASE-TRANSFER; DIOXIDE; CO2; SALTS; CYCLOADDITION; EPOXIDES; SOLVENTS;

D O I：

10.1002/cssc.201501365

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Stereochemically inert cationic cobalt(III) complexes were shown to be one-component catalysts for the synthesis of cyclic carbonates from epoxides and carbon dioxide at 50 degrees C and 5MPa carbon dioxide pressure. The optimal catalyst possessed an iodide counter anion and could be recycled. A catalytic cycle is proposed in which the ligand of the cobalt complexes acts as a hydrogen-bond donor, activating the epoxide towards ring opening by the halide anion and activating the carbon dioxide for subsequent reaction with the halo-alkoxide. No kinetic resolution was observed when terminal epoxides were used as substrates, but chalcone oxide underwent kinetic resolution.

引用

页码：216 / 222

页数：7

共 42 条

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