Substituted benzoyl peroxides in which one of the moieties is p-methoxybenzoyl (anisoyl) and the other has one or more nitro substituents are known to decompose heterolytically as well as homo1ytically.l In polar media the decomposition reactions are faster than those in non- polar media and the free radical derived products begin to be accompanied by ion pair derived products such as the carboxy inversion compound. The surface of silica favors the polar reaction ...
