Reactivity of heavy carbene analogues towards oxidants: a redox active ligand-enabled isolation of a paramagnetic stannylene

Abstract

o-Phenylenediamido Pb(II) and Sn(II) complexes react with mesityl azide in analogous C–H activation reactions. The Pb(II) complex forms a Lewis pair with ONMe₃. The Sn(II) analogue reacts with AgOTf yielding a paramagnetic stannylene; such compounds have been previously observed in situ, but hitherto have not been isolated.