An Air-Stable Dimeric Ru–S Complex with an NHC as Ancillary Ligand for Cooperative Si–H Bond Activation
Institut für Chemie, Technische
Universität Berlin, Strasse des 17. Juni 115, 10623 Berlin, Germany
Universität Berlin, Strasse des 17. Juni 115, 10623 Berlin, Germany
Organometallics, Article ASAP
DOI: 10.1021/acs.organomet.6b00110
Publication Date (Web): March 24, 2016
Copyright © 2016 American Chemical Society
*E-mail for M.O.: martin.oestreich@tu-berlin.de.
Abstract
The
preparation of a coordinatively unsaturated NHC ruthenium complex with a
tethered 2,6-dimesitylphenyl thiolate is described. Unlike related
mononuclear phosphine complexes, the NHC complex forms an air-stable
dimer with bridging sulfur ligands in both the solid state and solution.
The dinuclear complex is a precatalyst and activates Si–H bonds upon
heat- or donor-assisted dissociation into the catalytically active
monomer. Its usefulness is illustrated with representative
dehydrogenative Si–X coupling and hydrosilylation reactions.
preparation of a coordinatively unsaturated NHC ruthenium complex with a
tethered 2,6-dimesitylphenyl thiolate is described. Unlike related
mononuclear phosphine complexes, the NHC complex forms an air-stable
dimer with bridging sulfur ligands in both the solid state and solution.
The dinuclear complex is a precatalyst and activates Si–H bonds upon
heat- or donor-assisted dissociation into the catalytically active
monomer. Its usefulness is illustrated with representative
dehydrogenative Si–X coupling and hydrosilylation reactions.
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