83111-22-2Relevant academic research and scientific papers
COMBINED DECARBOXYLATION OF THE FORMATO LIGAND AND REDUCTIVE ELIMINATION OF HYDRIDO AND ARYL GROUPS IN THE SYNTHESIS OF RUTHENIUM(0) COMPLEXES. METHYLATION OF RUTHENIUM(0) WITH FORMALDEHYDE
Roper, W.R.,Wright, L.J.
, p. C5 - C8 (2007/10/02)
The formato ligand is readily introduced into the 5-coordinate complexes MRCl(CO)(PPh3)2 (M = Ru or Os, R = o-tolyl) giving 6-coordinate MR(η2-O2CH)(CO)(PPh3)2.In the presence of excess PPh3 thermal decarboxylation of the osmium complex leads to the stable aryl, hydride, OsRH(CO)(PPh3)3.A similar reaction with RuR(η2-O2CH)(CO)(PPh3)2 is accompanied by reductive elimination of RH and formation of Ru(CO)(PPh3)3 which as a solid is ortho-metallated, i.e. exists as .Decarboxylation and reductive elimination in the presence of bis(diphenylphosphino)ethane (dppe) give the zerovalent Ru(CO)(dppe)2. Ru(CO)(PPh3)3 undergoes a most unusual reaction with formaldehyde forming Ru(CH3)(η2-O2CH)(CO)(PPh3)2.
