Unravelling the different pathways of cyclohexene oxidation via a peroxyl radical generated from tert-butyl hydroperoxide (TBHP) by various metal salts

Two different mechanisms were obtained in the selective oxidation of cyclohexene catalyzed by CuCl 2 and VCl 3 respectively in presence of TBHP. The two opposed mechanisms are mainly caused by the roles of the t -BuOO˙ radical in catalytic oxidations.