Dalton Transactions

A detailed kinetic analysis of rhodium-catalyzed alkyne hydrogenation

J Luo, AG Oliver, JS McIndoe

Index: Luo, Jingwei; Oliver, Allen G.; Scott McIndoe Dalton Transactions, 2013 , vol. 42, # 31 p. 11312 - 11318

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Citation Number: 11

Abstract

Continuous monitoring using electrospray ionisation mass spectrometry (ESI-MS) shows that Wilkinson's catalyst hydrogenates a charge-tagged alkyne to the corresponding alkene, and at only a marginally slower rate, to the alkane. No rhodium-containing intermediates were observed during the reaction, consistent with the established mechanism which points at the initial dissociation of triphenylphosphine from Rh (PPh 3) 3 Cl as being the key step ...