V. Conte, B. Floris, P. Galloni
Aug 1, 2005
Citations
0
Influential Citations
46
Citations
Journal
Advanced Synthesis & Catalysis
Abstract
The molybdenum(VI)-catalysed oxybromi- nation of ethynylbenzene was performed with hydro- gen peroxide as oxidant and potassium bromide as source of bromine, in a two-phase water/solvent sys- tem, where solvent was either dichloromethane or an ionic liquid. The selectivity was toward 1,2-dibro- mostyrene when performed in water/dichlorome- thane. In ionic liquids better yields and shorter reac- tion times were obtained that, together with the complete ethynylbenzene conversion and the prefer- red formation of a,a-dibromoacetophenone, make the reaction synthetically useful.