Comparison of the Reactivity of Platinum(II) and Platinum(0) Complexes with Iminophosphine and Phosphinocarbonyl Ligands

Iminophosphines 2-(PPh2)C6H4C(R)═NR′ (L) (R = H, Me; R′ = 2,6-Me2C6H3 or 2,6-Pri2C6H3) react with Pt(II) precursors to form chelated P,N complexes [PtLX2] (X = Me, Et, Cl), whereas with [Pt(C7H10)3] (C7H10 = norbornene) and other labile Pt(0) precursors coordination is via phosphorus and chelation is not observed. However, activation of the imine H or the methyl C–H bond of the ketoimine affords P,C metallacyclic hydride complexes...