Although common for late transition metals, carbon-carbon reductive elimination from organouranium species is very rare. The few examples known proceed by radical mechanisms. Recently, we have established that carbon-carbon reductive elimination from tetrabenzyluranium proceeds by a concerted pathway when induced by the redox-active diazabutadiene ligand, MesDABMe, generating bibenzyl and (MesDABMe)U(CH2Ph)2 as the products. Herein, we present recent results on this project which describe a family of substituted tetrabenzyluranium derivatives, UBn4 (Bn = p-iPrBn, p-tBuBn, p-NMe2Bn, p-SMeBn, p-ClBn, m-OMeBn, o-OMeBn, 2-picolyl), along with their reductive elimination chemistry. Full characterization of reductive elimination organometallic products as well as kinetic and mechanistic studies will be presented.

Mechanistic insights into carbon-carbon reductive elimination from tetrabenzyluranium

251st National Meeting (2016)

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