E.s.r. evidence for the multiplicity of side-chain oxidation pathways in the acid-catalysed decomposition of substituted hydroxycyclohexadienyl radicals
Abstract
Addition of ˙OH to the aromatic rigns of 3-phenylpropanoic acid and 3-phenylpropanol is followed at low pH by two competing processes, oxidation at the side-chain terminus and loss of a benzylic hydrogen atom, in both of which radical-cations are believed to mediate.