A sustainable two-phase procedure for V-catalyzed toluene oxidative bromination with H2O2-KBr

作者:Galloni Pierluca; Mancini Marco; Floris Barbara; Conte Valeria*
来源:Dalton Transactions, 2013, 42(33): 11963-11970.
DOI:10.1039/c3dt50907a

摘要

A sustainable V(V) and Mo(VI) catalysed two-phase procedure for bromination of toluene under quite mild conditions is proposed; H2O2 is the primary oxidant and KBr is the bromine source; metal precursors are commercially available salts. The reaction is efficient without any additional solvent. By using PhCH3 as a solvent/substrate good yields, together with interesting selectivity toward the formation of PhCH2Br, are obtained with both metal ions. Recycling of the catalytic phase is also possible. Useful information on the V-peroxido chemistry was obtained.

  • 出版日期2013