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%.
Fetching data from CrossRef. This may take some time to load.
Journal of the Chemical Society, Dalton Transactions
- Information Point