Synthesis of mixed-donor amido/amino/siloxo ligands from symmetrical diamidosilylether ligands via a retro-Brook rearrangement and their chromium(II) complexes.
The dilithio salts of two chelating diamidosilylether ligands undergo a retro-Brook rearrangement from oxygen to the amido-nitrogen, thereby directly yielding a new mixed-donor amido/amino/siloxo ligand. When reacted with chromium(II), siloxo-bridged dimers and a very strong eta(2)-(N,C(ipso)) arylamido interaction are featured.
Department of Chemistry, Simon Fraser University, Burnaby, BC, CanadaV5A 1S6.
Farzad
F
Haftbaradaran
Garry
G
Mund
Raymond J
RJ
Batchelor
James F
JF
Britten
Daniel B
DB
Leznoff