Journal of the American Chemical Society, Vol.130, No.6, 1839-1839, 2008
Platinum-catalyzed phenyl and methyl group transfer from tin to iridium: Evidence for an autocatalytic reaction pathway with an unusual preference for methyl transfer
Platinum complexes have been found to catalyze the transfer of U-bound ligands to the Ir center in CP*(PMe3)IrCl2 (Cp* = eta(5)-C5Me5) from Bu3SnPh and PhxSnMe4-x (x = 0-3) complexes. Despite the presence of Sn-Ph bonds in the PhxSnMe4-x complexes, exclusive transfer of the Sn-Me group occurs, an unusual chemoselective process. Examination of the reaction mechanism supports an autocatalytic process.