The Mechanism of C-C Bond Formation on the Pt(IV) Center Involving Chelate Metallocycle Ligands

Ananikov V.P., Mitchenko S.A., Beletskaya I.P., J.Organomet.Chem., 2000, 604, 290-295.
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An unusual fact of C-C reductive elimination reaction in bis-chelated Pt(IV) complexes under mild conditions was studied. It has been shown that breaking at least one of the chelate rings is required to promote a carbon-carbon bond formation reaction. An intermediate complex, which resulted from a chelate ligand breaking process, was detected directly in the reaction mixture using 2D 1H–195Pt heteronuclear NMR spectroscopy.