Hydrobromic acid??dimethyl sulfoxide reagent for dealkylation of 5, 10??dialkyl??5, 10??dihydrophenazines: Synthesis of 10??alkyl??2 (10H)??phenazinones

A Sugimoto, Y Yoshino, R Watanabe…

Index: Sugimoto, Akira; Yoshino, Yasuyuki; Watanabe, Ryo; Mizuno, Kazuhiko; Uehara, Kaku Journal of Heterocyclic Chemistry, 1999 , vol. 36, # 4 p. 1057 - 1064

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Citation Number: 9

Abstract

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.