Hydrobromic acid-dimethyl sulfoxide reagent for dealkylation of 5,10-dialkyl-5,10-dihydrophenazines: Synthesis of 10-alkyl-2(10<i>H</i>)-phenazinones
作者:Akira Sugimoto、Yasuyuki Yoshino、Ryo Watanabe、Kazuhiko Mizuno、Kaku Uehara
DOI:10.1002/jhet.5570360437
日期:1999.7
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.
通过5,10-二烷基取代的5,10-二氢吩嗪与氢溴酸在二甲亚砜中在90–110°下反应,获得了10-烷基-2(10 H)-吩嗪酮作为主要产物。在1,6-二氯-5,10-二甲基-5,10-二氢吩嗪的情况下,分离出溴化的二氢吩嗪。