Efficient homogeneous catalysis in the reduction of CO2 to CO

被引:552
作者
Laitar, DS [1 ]
Müller, P [1 ]
Sadighi, JP [1 ]
机构
[1] MIT, Dept Chem, Cambridge, MA 02139 USA
关键词
D O I
10.1021/ja0566679
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The well-defined copper(I) boryl complex [(IPr)Cu(Bpin)] [where IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene, and pin = pinacolate: 2,3-dimethyl-2,3-butanediolate] deoxygenates CO2 rapidly and quantitatively, affording CO and the borate complex [(IPr)Cu(OBpin)]. The boryl may be regenerated by treatment with the diboron compound pinB-Bpin, giving the stable byproduct pinB-O-Bpin. The use of a copper(I) alkoxide precatalyst and stoichiometric diboron reagent results in catalytic reduction of CO2, with high turnover numbers (1000 per Cu) and frequencies (100 per Cu in 1 h) depending on supporting ligand and reaction conditions. Copyright © 2005 American Chemical Society.
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页码:17196 / 17197
页数:2
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