67775-54-6Relevant academic research and scientific papers
Organometallic chemistry of the transition elements. 5. An improved synthetic route to (arene)chromium π-complexes
Markle, Richard J.,Pettijohn, Ted M.,Lagowski
, p. 1529 - 1531 (2008/10/08)
A new, solvent-free synthetic route to bis(η6-arene)chromium(0) compounds incorporating ligands with low vapor pressures is discussed. The direct reaction of chromium metal atoms with both model ligands (durene, pentamethylbenzene, and hexamethylbenzene) and ligands containing two sites at which π-complexation to metal atoms can occur (biphenyl, diphenylmethane, and trans-stilbene) is described. The preparation and characterization of several of the resulting compounds are reported for the first time via the direct metal atom synthesis technique.
Thermally induced reductive ligand coupling in chromium π complexes of aromatic ketones 1
Elschenbrolch, Christoph
, p. 1399 - 1401 (2008/10/08)
Thermolysis below or at the melting point of crystalline samples of bis(η6-acylbenzene)chromium(0) complexes yields ethene derivatives as main products. An intramolecular mechanism of ligand coupling is ruled out as the result of cross thermolysis experiments. Evidence for the intermediacy of arylcarbenes, formed via deoxygenation of the π-bonded aromatic ketones by Cr(0), is provided by the minor products of the thermolysis.
