title: Hemilability of P(X)N-type ligands (X = O, N-H): rollover cyclometalation and benzene C-H activation from (P(X)N)PtMe2 complexes.
abstract: The thermolyses of ((tBu)P(O)N)PtMe2 (, (tBu)P(O)N = (di-tert-butylphosphinito)pyridine) and ((tBu)P(N-H)N)PtMe2 (, (tBu)P(N-H)N = (di-tert-butylphosphino)-2-aminopyridine) in benzene-d6 were investigated. With ((tBu)P(O)N)PtMe2, the product of a rollover cyclometalation of the pyridyl ring was observed in 80% yield along with formation of CH4. In contrast, thermolysis of ((tBu)P(N-H)N)PtMe2 resulted in competing rollover cyclometalation and intermolecular benzene C-H activation with production of a mixture of CH4 and CH3D.
authors: Department of Chemistry, University of Washington, Box 351700, Seattle, WA 98195, USA. goldberg@chem.washington.edu.
authors: Margaret L
authors: ML
authors: Scheuermann
authors: Kyle A
authors: KA
authors: Grice
authors: Matthew J
authors: MJ
authors: Ruppel
authors: Marta
authors: M
authors: Roselló-Merino
authors: Werner
authors: W
authors: Kaminsky
authors: Karen I
authors: KI
authors: Goldberg