Dimethylcuprate undergoes a dyotropic rearrangement

All change! Comparison of the gasphase decomposition reactions of [CH 3CuCH3]- and [CH3AgCH 3]- reveals that [CH3CuCH3] - undergoes a competition between a dyotropic rearrangement and bond homolysis, whilst [CH3AgCH3]- only undergoes bond homolysis. Ab initio calculations reveal that the different behavior in [CH3AgCH3]- stems from both the lowering of the homolytic bond dissociation energy and an increase in dyotropic rearrangement activation energy. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA.