Carbon-Carbon Bond Activation of 2, 2, 6, 6-Tetramethyl-piperidine-1-oxyl by a RhII Metalloradical: A Combined Experimental and Theoretical Study

KS Chan, XZ Li, WI Dzik, B de Bruin

Index: Kin, Shing Chan; Xin, Zhu Li; Dzik, Wojciech I.; De Bruin, Bas Journal of the American Chemical Society, 2008 , vol. 130, # 6 p. 2051 - 2061

Full Text: HTML

Citation Number: 42

Abstract

Competitive major carbon-carbon bond activation (CCA) and minor carbon-hydrogen bond activation (CHA) channels are identified in the reaction between rhodium (II) meso- tetramesitylporphyrin [RhII (tmp)](1) and 2, 2, 6, 6-tetramethyl-piperidine-1-oxyl (TEMPO)(2). The CCA and CHA pathways lead to formation of [RhIII (tmp) Me](3) and [RhIII (tmp) H](5), respectively. In the presence of excess TEMPO,[RhII (tmp)] is regenerated from [RhIII (tmp) ...