Behavior of 2-substituted and 2,6-disubstituted benzoyloxyl radicals. Electronic and steric effects of the substituents

Article abstract of DOI:10.1016/S0040-4039(00)73422-8

In contrast to 2-methylbenzoyloxyl radicals, 2,6-dimethylbenzoyloxyl and 2,4,6-trimethyl-benzoyloxyl radicals decarboxylate efficiently rather than transfer a hydrogen atom, as observed by transient absorption spectroscopy and product distribution.