Synthesis of functionalized 4-nitroanilines by ring transformation of dinitropyridone with enaminones
作者:Saki Naito、Soichi Yokoyama、Haruyasu Asahara、Nagatoshi Nishiwaki
DOI:10.1016/j.tetlet.2017.11.003
日期:2017.12
2-Functionalized 4-nitroanilines were readily synthesized by ring transformation using 3,5-dinitro-2-pyridone and enaminones prepared from 1,3-dicarbonyl compounds and amines. Modification of the amino group and the ortho-position could be achieved by simply changing the enaminones. Using this strategy, functional groups such as acetyl, benzoyl, and ethoxycarbonyl groups could be introduced into the
通过使用由1,3-二羰基化合物和胺制备的3,5-二硝基-2-吡啶酮和烯胺酮,通过环转化,可以轻松合成2-官能化的4-硝基苯胺。氨基和邻位的修饰可以通过简单地改变烯胺酮来实现。使用这种策略,可以将诸如乙酰基,苯甲酰基和乙氧羰基的官能团引入硝基苯胺框架中。