The molybdenum(VI)-catalysed oxybromination of ethynylbenzene was performed with hydrogen peroxide as oxidant and potassium bromide as source of bromine, in a two-phase water/solvent system, where solvent was either dichloromethane or an ionic liquid. The selectivity was toward 1,2-dibromostyrene when performed in water/dichloromethane. In ionic liquids better yields and shorter reaction times were obtained that, together with the complete ethynylbenzene conversion and the preferred formation of alpha,alpha-dibromoacetophenone, make the reaction synthetically useful.

Conte, V., Floris, B., Galloni, P., Silvagni, A. (2005). Oxybromination of ethynylbenzene catalysed by molybdenum complexes in organic solvent and in ionic liquids. ADVANCED SYNTHESIS & CATALYSIS, 347(10), 1341-1344 [10.1002/adsc.200505114].

Oxybromination of ethynylbenzene catalysed by molybdenum complexes in organic solvent and in ionic liquids

CONTE, VALERIA;FLORIS, BARBARA;GALLONI, PIERLUCA;
2005-01-01

Abstract

The molybdenum(VI)-catalysed oxybromination of ethynylbenzene was performed with hydrogen peroxide as oxidant and potassium bromide as source of bromine, in a two-phase water/solvent system, where solvent was either dichloromethane or an ionic liquid. The selectivity was toward 1,2-dibromostyrene when performed in water/dichloromethane. In ionic liquids better yields and shorter reaction times were obtained that, together with the complete ethynylbenzene conversion and the preferred formation of alpha,alpha-dibromoacetophenone, make the reaction synthetically useful.
2005
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore CHIM/06 - CHIMICA ORGANICA
English
Con Impact Factor ISI
Alkynes; Green chemistry; Ionic liquids; Molybdenum(VI); Oxybromination
Conte, V., Floris, B., Galloni, P., Silvagni, A. (2005). Oxybromination of ethynylbenzene catalysed by molybdenum complexes in organic solvent and in ionic liquids. ADVANCED SYNTHESIS & CATALYSIS, 347(10), 1341-1344 [10.1002/adsc.200505114].
Conte, V; Floris, B; Galloni, P; Silvagni, A
Articolo su rivista
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/26975
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