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

Dalton transactions (Cambridge, England : 2003) (2013-06-12)
Pierluca Galloni, Marco Mancini, Barbara Floris, Valeria Conte
ABSTRACT

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.

MATERIALS
Product Number
Brand
Product Description

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