Hydrobromic acid??dimethyl sulfoxide reagent for dealkylation of 5, 10??dialkyl??5, 10??dihydrophenazines: Synthesis of 10??alkyl??2 (10H)??phenazinones
Abstract By the reaction of 5, 10-dialkyl-substituted 5, 10-dihydrophenazine with hydrobromic acid in dimethyl sulfoxide at 90–110, 10-alkyl-2 (10H)-phenazinone was obtained as a major product. Brominated dihydrophenazine was isolated in the case of 1, 6- dichloro-5, 10-dimethyl-5, 10-dihydrophenazine.
