25731-06-0Relevant articles and documents
ELECTRON SPIN RESONANCE STUDIES. PART 64. THE HYDROXYL RADICAL-INDUCED DECARBOXYLATION OF METHIONINE AND SOME RELATED COMPOUNDS
Davies, Michael J.,Gilbert, Bruce C.,Norman, Richard O.
, p. 731 - 738 (2007/10/02)
Spin-trapping e.s.r. experiments employing both MeNO2 (in conjunction with generation of .OH from the TiIII-H2O2 couple in a flow system) and ButNO ( in conjunction with the photolytic decomposition of H2O2) confirm that the reaction of .OH with methionine, S-methylcysteine, and some related compounds effects oxidative decarboxylation.It is proposed that the reaction proceeds via the sequential formation of an hydroxyl adduct at sulphur, a sulphur-centred radical-cation, and a (cyclic) sulphuranyl radical in which the carboxylate function becomes bonded to sulphur.