Efficient coupling of CO2 and epoxides with bis(phenoxyiminato) cobalt(III)/Lewis base catalysts

被引：32

作者：

Sibaouih, Ahlam ^{[1
]}

Ryan, Paul ^{[1
]}

Axenov, Kirill V. ^{[1
]}

Sundberg, Markku R. ^{[1
]}

Leskela, Markku ^{[1
]}

Repo, Timo ^{[1
]}

机构：

[1] Univ Helsinki, Dept Chem, Inorgan Chem Lab, FIN-00014 Helsinki, Finland

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2009年 / 312卷 / 1-2期

基金：

芬兰科学院;

关键词：

Carbon dioxide; Epoxide; Catalyst; Cyclic carbonate; Mechanism; METAL-SALEN COMPLEXES; CARBON-DIOXIDE; CYCLIC CARBONATES; CYCLOHEXENE OXIDE; CHEMICAL FIXATION; PROPYLENE-OXIDE; HIGHLY EFFICIENT; COPOLYMERIZATION; MECHANISM; SYSTEM;

D O I：

10.1016/j.molcata.2009.07.009

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：

A series of unbridged bis(phenoxyiminato) cobalt(III)complexes were synthesized and studied as catalysts for the coupling of CO2 and epoxide. Dimethylamino pyridine (DMAP) and tetrabutyl ammonium bromide (Bu4NBr). were used as co-catalysts in the reaction. Both Co(III)/DMAP and Co(III)/Bu4NBr systems showed high catalytic activity and selectivity in the Coupling of n-hexyl oxide and CO2, resulting in n-hexyl carbonate. Several mono- and di-substituted terminal epoxides were also tested. The reaction mechanism of the Co(III)/DMAP system was investigated in detail using ESI-MS revealing that in addition to the main product, cyclic carbonate, traces of oligomers are formed. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：87 / 91

页数：5

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