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Issue 4, 2015
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Simple synthesis of neutral and cationic Cu-NHC complexes

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Abstract

A direct and practical synthetic route to N-heterocyclic carbene copper complexes of [(NHC)CuX] (X = halide) and [(NHC)2Cu]PF6 types using commercially available copper powder is described. A number of copper-NHC complexes have been obtained in a range of yields from 26 to 99%. The reactions take place in air without removal of moisture and oxygen, and the excess of copper powder can be easily removed via simple filtration after completion. The direct reactions of imidazolium salts and copper powder can also be performed in aqueous media avoiding tedious purification processes. The procedure is also suitable for gram-scale preparation.

Graphical abstract: Simple synthesis of neutral and cationic Cu-NHC complexes

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Publication details

The article was received on 27 Sep 2014, accepted on 25 Nov 2014 and first published on 27 Nov 2014


Article type: Paper
DOI: 10.1039/C4DT02986K
Citation: Dalton Trans., 2015,44, 1836-1844
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    Simple synthesis of neutral and cationic Cu-NHC complexes

    B. Liu, X. Ma, F. Wu and W. Chen, Dalton Trans., 2015, 44, 1836
    DOI: 10.1039/C4DT02986K

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