Application of neutral iridium(I)<i>N</i>-heterocyclic carbene complexes in<i>ortho</i>-directed hydrogen isotope exchange
作者:Alison R. Cochrane、Stephanie Irvine、William J. Kerr、Marc Reid、Shalini Andersson、Göran N. Nilsson
DOI:10.1002/jlcr.3084
日期:2013.7
Bench-stable complexes of the type [Ir(COD)(NHC)Cl] (NHC = N-heterocyclic carbene) have been investigated within the field of hydrogenisotopeexchange. By employing a sterically encumbered NHC within such complexes and catalyst loadings of only 5 mol%, moderate to high deuterium incorporations were achieved across a range of aromatic ketones and nitrogen-based heterocycles. The simple and synthetically
Investigation of [IrH2(Me2CO)2(PPh3)2]BF4 as a catalyst of hydrogen isotope exchange of substrates in solution
作者:Richard Heys
DOI:10.1039/c39920000680
日期:——
The title complex is found to catalyse the efficient and regioselective exchange of deuterium gas with hydrogens in several substrate structural types; exchange is observed only at aromatic sites in proximity to certain nitrogen or oxygen containing functional groups, but not all such sites undergo exchange.