Selective hydrogenation of PhCHCHCOMe to the unsaturated alcohol catalysed by [IrH3(PR3)3](R = alkyl or aryl)
- 1 January 1988
- journal article
- Published by Royal Society of Chemistry (RSC) in J. Chem. Soc., Dalton Trans.
- No. 4,p. 947-952
- https://doi.org/10.1039/dt9880000947
Abstract
Selective hydrogenation of benzylideneacetone (PhCHCHCOMe) catalysed by iridiumphosphine systems prepared in situ is reported. Depending on the steric properties of the phosphine employed and the P:lr ratio, different species are formed in solution, as evidenced by n.m.r. spectroscopy. [IrH5(PR3)2](R = alkyl or aryl) is a catalyst for the hydrogenation of the carbon–carbon double bond, whereas [IrH3(PR3)3] catalyses the reduction of the carbonyl group with a selectivity up to 100%.Keywords
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