Oxidation-Active Flavin Models: Oxidation of α-Hydroxy Acids by Benzo-dipteridine Bearing Metal-Binding Site in the Presence of Divalent Metal Ion and Base in Organic Solvents
effect for deuterated mandelic acids (k(H)/k(D) = 2.1-3.7) and the Hammett plots for substitutedmandelic acids (V-shaped plots). In the reaction of alpha-substituted alpha-hydroxy acids such as alpha-methyl mandelic and benzylic acids with 4, novel oxidative decarboxylation was found to take place, giving acetophenone and benzophenone, respectively. The oxidation mechanism for mandelic acid was proposed