An electron spin resonance study of the photolysis of carboxylic acids, neat or in non-polar solvents: regiospecific loss of a hydrogen atom from the α-position
作者:John L. Courtneidge、Alwyn G. Davies
DOI:10.1039/p29850000385
日期:——
behaviour of the acids in polar solvents, when they normally show Norrish l cleavage of the alkyl–acyl bond, or photoreduction by the solvent. Two models are considered, to account for the regiospecific formation of the radicals RĊHCO2H. The first assumes that cleavage of a C–OH bond in a hydrogen-bonded dimer yields an HO· radical which is hydrogen-bonded to a carbonyl group of the acid [RCH2C(OH)=O ⋯