A convenient synthesis of 2-amino-6-methoxy-1-methyl (and 1,4-dimethyl)carbazole derivatives and their 6-aza analogues
作者:Jacqueline Moron、Corinne Landras、Emile Bisagni
DOI:10.1002/jhet.5570290634
日期:1992.10
5-dimethyl)-3-acetylamino-phenylhydrazines 5a,b. Fischer indolization of their hydrazones 6a,b and 7a,b derived from 4-methoxycy-clohexanone and 4-piperidone, and subsequent aromatization of intermediate tetrahydrocarbazole derivatives 8a,b and 9a,b allowed us to work out a convenient route to the title compounds.
2,6-二氨基甲苯(3a)和2,6-二氨基对二甲苯(3c)产生2-甲基(和2,5-二甲基)-3-乙酰基氨基苯肼5a,b。费歇尔将衍生自4-甲氧基环己酮和4-哌啶酮的6a,b和7a,b进行了吲哚化,然后将中间体四氢咔唑衍生物8a,b和9a,b芳构化,这为我们找到标题化合物的便捷途径。