Epoxidation of olefins catalyzed by molybdenum-siloxane compounds
authors Abrantes, M; Valente, AA; Pillinger, M; Goncalves, IS; Rocha, J; Romao, CC
nationality International
journal INORGANIC CHEMISTRY COMMUNICATIONS
author keywords metallasiloxanes; molybdenum; oxomolybdenum complexes; epoxidations; tert-butylhydroperoxide
keywords DIOXOMOLYBDENUM(VI) COMPLEXES; OXIDATIONS; SILICA
abstract The triphenylsiloxy complex MoO2(OSiPh3)(2) and a related polyhedral metallasiloxane formulated as [MoO2(O2SiPh2)](n) have been tested as catalysts for the liquid phase epoxidation of cyclic olefins by tert-butylhydroperoxide at 55 degreesC. The initial activities increased in the order 1-octene < trans-2-octene < cyclododecene < cyclooctene and the corresponding epoxides were the only observed products. The best results were obtained without the addition of any co-solvents (other than decane), forming solid-liquid systems. Cyclooctene oxide was obtained in quantitative yield within 7.5 h of reaction, and the solid catalysts could be recycled without measurable loss of activity. (C) 2002 Elsevier Science B.V. All rights reserved.
publisher ELSEVIER SCIENCE BV
issn 1387-7003
year published 2002
volume 5
issue 12
beginning page 1069
ending page 1072
digital object identifier (doi) 10.1016/S1387-7003(02)00642-1
web of science category Chemistry, Inorganic & Nuclear
subject category Chemistry
unique article identifier WOS:000179566300014
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journal analysis (jcr 2017):
journal impact factor 1.810
5 year journal impact factor 1.506
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