cs6b02723_si_004.cif (804.29 kB)
Download fileNeutral Dinuclear Copper(I)-NHC Complexes: Synthesis and Application in the Hydrosilylation of Ketones
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posted on 2016-12-06, 13:37 authored by Michael Trose, Faïma Lazreg, Tao Chang, Fady Nahra, David B. Cordes, Alexandra M. Z. Slawin, Catherine S. J. CazinThe synthesis of a class of highly
stable neutral dinuclear Cu(I)-NHC complexes using 1,2,4-triazole
as a bridging ligand is described. Various NHCs were used to generate
a library of [Cu(μ-trz)(NHC)]2 complexes. Interestingly,
[Cu(μ-trz)(IPr)]2 was found to be highly active in
the hydrosilylation of ketones, without the need for an external base
or any other additive. A wide range of aryl and alkyl ketones,
as well as sterically hindered ketones, was successfully reduced
to alcohols using the lowest catalyst loading reported to date.
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