A Concise Synthesis of 2,4-Disubstituted Pyridines: A Convenient Synthesis of 2-Bromo-4-iodopyridine via Halogen Dance and Its Successive One-Pot Disubstitutions
作者:Xin-Fang Duan、Xiang-Hong Li、Fu-You Li、Chun-Hui Huang
DOI:10.1055/s-2004-831259
日期:——
As a key building block for 2,4-disubstituted pyridines, 2-bromo-4-iodopyridine was synthesized conveniently from 2-bromopyridine using LDA and I2 via ‘halogen dance’. 2-Bromo-4-iodopyridine was then converted to other 2,4-diaryl pyridines and 4-aryl-2,2′-bipyridines in one-pot reactions.
作为2,4-二取代吡啶的关键构件,2-溴-4-碘吡啶通过“卤素舞”方法方便地从2-溴吡啶合成,使用了LDA和I2。随后,2-溴-4-碘吡啶在一锅反应中转化为其他2,4-二芳基吡啶和4-芳基-2,2′-联吡啶。