Oxovanadium(IV) complexes as molecular catalysts in epoxidation: Simple access to pyridylalkoxide derivatives
作者:Gerhard M. Lobmaier、Harald Trauthwein、Guido D. Frey、Bernd Scharbert、Eberhardt Herdtweck、Wolfgang A. Herrmann
DOI:10.1016/j.jorganchem.2005.11.034
日期:2006.5
Reaction of bis(aryl)-2-pyridylmethanol ligands (1a-7a) with VO(SO4)center dot 5H(2)O results in the formation of metal-oxo complexes [VO(N-O)(2)] (1-7). with N-O = bis(aryl)-2-pyridylmethanol. A molecular structure of (4) has been determined by single crystals X-ray diffraction study, which showed the expected square planar pyramidal geometry with the pyridine ring nitrogens in trans-position to each other. The metal-oxo complexes (1-4,6,7) demonstrated the ability to catalyse epoxidation reactions of alkenes with molecular oxygen. (c) 2005 Elsevier B.V. All rights reserved.