Abstract
AbstractHigh‐pressure NMR mechanistic investigations into the promoting role of dicarbonyldiiodoplatinum complex in the iridium‐catalysed carbonylation of methanol to acetic acid are consistent with iodide abstraction from the [IrI3(CH3)(CO)2]– resting state species by [PtI2(CO)2], unbolting the rate‐limiting migratory CO insertion step. A new [Ir–Pt] heterodimetallic complex, which presumably represents the key species involved in the abstraction of I–, has been characterised by NMR in tandem with FAB‐MS. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
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