2-溴-3-碘吡啶置于lithium Diisopropyl Amide体系中,用 四氢呋喃 用作溶剂,以80%的收率获得2-溴-4-碘吡啶
参考文献: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
标题: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
摘要: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.
Doi:10.1055/s-2004-831259