作者:Qing-Dong Wang、Jin-Ming Yang、Dong Fang、Jiangmeng Ren、Bu-Bing Zeng
DOI:10.1016/j.tetlet.2017.05.050
日期:2017.7
An efficient iodine-catalyzed chemoselective 3-formylation of free (N–H) and N-substituted indoles was achieved by using hexamethylenetetramine (HMTA) in the presence of activated carbon under air atmosphere. This new method could provide 3-formylindoles in moderate to excellent yields with fairly short reaction times. Moreover, this catalytic formylation of indoles procedure can be applied to gram-scale
在空气中存在活性炭的情况下,通过使用六亚甲基四胺(HMTA),可以有效地催化碘催化的游离(NH )和N-取代的吲哚的化学选择性3-甲酰化。该新方法可以以相当短的反应时间以中等至优异的产率提供3-甲酰基吲哚。而且,这种吲哚的催化甲酰化方法可以应用于克级合成。