Improved Syntheses of Versatile Ruthenium Hydridocarbonyl Catalysts Containing Electron-Rich Ancillary Ligands

Clean, high‐yield routes are established to the important catalyst chlorobis(tricyclohexylphosphine)ruthenium hydridocarbonyl [RuHCl(CO)(PCy3)2] 2 and its N‐heterocyclic carbene (NHC) derivatives RuHCl(CO)(NHC)(PCy3) (3a: NHC=IMes; 3b, NHC=H2IMes; IMes=1,3‐dimesitylimidazol‐2‐ylidene). These complex...

Full description

Saved in:
Bibliographic Details
Published in:Advanced synthesis & catalysis 2008-03, Vol.350 (5), p.773-777
Main Authors: Beach, Nicholas J., Dharmasena, Ureshini L., Drouin, Samantha D., Fogg, Deryn E.
Format: Article
Language:English
Subjects:
carbonyl ligands
hydride ligands
N-heterocyclic carbenes
phosphane ligands
ruthenium
synthetic methods
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Clean, high‐yield routes are established to the important catalyst chlorobis(tricyclohexylphosphine)ruthenium hydridocarbonyl [RuHCl(CO)(PCy3)2] 2 and its N‐heterocyclic carbene (NHC) derivatives RuHCl(CO)(NHC)(PCy3) (3a: NHC=IMes; 3b, NHC=H2IMes; IMes=1,3‐dimesitylimidazol‐2‐ylidene). These complexes are obtained by treating chlorotris(tricyclohexylphosphine)ruthenium hydridocarbonyl [RuHCl(CO)(PPh3)3] 1 with tricyclohexylphosphine [PCy3], or with the appropriate NHC ligand, then PCy3. Advantages over prior routes to these complexes lie in the high yields from a conveniently accessible precursor, the absence of by‐products that otherwise prove difficult to remove, and the short reaction times under experimentally convenient conditions.
ISSN:1615-4150
1615-4169
DOI:10.1002/adsc.200800056