Titanium(IV) tert-Butoxide-tert-Butyl Hydroperoxide System as Oxidant for C-H Bonds in Hydrocarbons and Oxygen-containing Compounds

摘要

The system Ti(IV) tetra-tert-butoxide-tert-butyl hydroperoxide in mild conditions (20degC) oxidizes C-H bonds of methyl (toluene),methylene (hexane,ethylbenzene,benzyl ethyl ether),and methine (1,1-diphenylethane,triphenylmethane) groups.The role of oxidant is played by the oxygen generated by the system.The process involves free radicals and produces hydroperoxides and Ti(IV) peroxides.The latter decompose both with preservation and decomposition of the hydrocarbon skeleton.