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Alex E. Carpenter, Grant W. Margulieux, Matthew D. Millard, Dr. Curtis E. Moore, Dr. Nils Weidemann, Prof. Dr. Arnold L. Rheingold and Prof. Dr. Joshua S. Figueroa Zwitterionic Stabilization of a Reactive Cobalt Tris-Isocyanide Monoanion by Cation Coordination Angewandte Chemie International Edition 51

Version of Record online: 15 AUG 2012 | DOI: 10.1002/anie.201205058

Thumbnail image of graphical abstract

A break with tradition: The cation, [Ph3P[DOUBLE BOND]N[DOUBLE BOND]PPh3]+ ([PPN]+), was found to provide a stabilizing η2-arene interaction to the coordinatively unsaturated, tris-isocyanide monoanion, [Co(CNArMes2)3](ArMes2=2,6-(2,4,6-Me3C6H2)C6H3); Co=purple, N=light purple, and P=orange). The resulting zwitterion is a source of [Co(CNArMes2)3] anions, performing nucleophilic additions, carbon–element bond activations, and multistep decarbonylations.

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