Synthesis, structures and reactions of new thermally stable silylenes

Abstract

Two representatives 1a and 1b of a new series of stable but reactive bis(amino)silylenes, derived from the N,N′-dineopentyl-1,2-phenylenediamido ligand RC₆H₃[(CH₂Bu^t)]₂, have been prepared by reductive elimination from RC₆H₃[[graphic omitted]SiCl₂ and characterised by NMR spectroscopy and for 1a X-ray crystallography; the silyienes [graphic omitted](CH₂Bu^t)]₂C₆H₃-1,2-R (R = H 1a or 4-Me 1b) readily undergo oxidative addition with EtOH or Mel.