210901-22-7Relevant academic research and scientific papers
Hydrido(acylphenolato)cobalt(III) compounds containing trimethylphosphane ligands
Klein, Hans-Friedrich,Haller, Stefan,Sun, Hongjian,Li, Xiaoyan,Jung, Thomas,Roehr, Caroline,Floerke, Ulrich,Haupt, Hans-Juergen
, p. 587 - 598 (2007/10/03)
Salicylaldehyde derivatives and related β-hydroxo aldehydes CHO-CR=CR′-OH react with CoMe(PMe3)4 via oxidative substitution to form low-spin d6 complexes mer-CoH(CO-CR=CR′-O)(PMe3)3. Reductive elimination of acyl and hydride functions from cis positions at the metal is less favourable than in carbonyl cobalt intermediates through a pronounced stabilization by neutral phosphane σ-donor and dianionic acylenolato chelate ligands. Reactions of the hydride complexes with iodomethane or with protic acids HX afford octahedral molecular complexes mer-CoX(CO-CR=CR′-O)(PMe3)3 (X =I, OAc) and mer-CoX(CO-CR=CR′-O)(PMe3)2 (X = OAc, O-CR′=CR-CHO) without opening of the acylenolato chelate ring.
