Effect of water on the mechanism of hydrogenations catalysed by rhodium phosphine complexes
Abstract
On the action of H2 in aqueous solutions, the water soluble analogue of Wilkinson's catalyst, [RhCl(tppms)3][tppmsP(C6H5)2(C6H4SO3Na)], gives [RhH(tppms)3] instead of [RhH2Cl(tppms)3] and this is reflected in the rates and selectivities of hydrogenations using this catalyst.