Carbon Dioxide Hydrosilylation Promoted by Cobalt Pincer Complexes

The addition of carbon dioxide to (tBuPNP)CoH [tBuPNP = 2,6-bis(di-tert-butylphosphinomethyl)pyridine] resulted in rapid insertion into the Co–H bond to form the corresponding κ1-formate complex, which has been structurally characterized. Treatment of (tBuPNP)CoH with PhSiH3 resulted in oxidative ad...

Full description

Saved in:
Bibliographic Details
Published in:Inorganic chemistry 2014-09, Vol.53 (18), p.9463-9465
Main Authors: Scheuermann, Margaret L, Semproni, Scott P, Pappas, Iraklis, Chirik, Paul J
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The addition of carbon dioxide to (tBuPNP)CoH [tBuPNP = 2,6-bis(di-tert-butylphosphinomethyl)pyridine] resulted in rapid insertion into the Co–H bond to form the corresponding κ1-formate complex, which has been structurally characterized. Treatment of (tBuPNP)CoH with PhSiH3 resulted in oxidative addition to form trans-(tBuPNP)CoH2(SiH2Ph), which undergoes rapid exchange with excess free silane. With 0.5 mol % (tBuPNP)CoH, the catalytic hydrosilylation of CO2 with PhSiH3 to a mixture of oligomers containing silyl formate, bis(silyl)acetyl, and silyl ether subunits has been observed.
ISSN:0020-1669
1520-510X
DOI:10.1021/ic501901n