Decomposition of Dibenzyl Ether Hydroperoxide in the Presence of Homo- and Heteronuclear Chromium(III) μ3-Oxotrimetallohexapivalates

Abstract

Results are given for a kinetic study of the decomposition of the hydroperoxide (HP) of dibenzyl ether (DBE) to give oxidates of the latter in the presence of complexes Cr2MOPiv6·3L(M = Cr(III), Fe(III), Ni(II), and Co(II); L = PPy, γ-Pic, and H2O). The experimental data were satisfactorily described assuming that the formation of an HP–catalyst intermediate complexes is the rate-limiting step and the catalyst is deactivated by components of the DBE oxidate and taking account of the noncatalytic decomposition of the HP.