A facile synthesis of 2,3-disubstituted pyrrolo[2,3-b]pyridines via palladium-catalyzed heteroannulation with internal alkynes
作者:Sang Sun Park、Joong-Kwon Choi、Eul Kgun Yum、Deok-Chan Ha
DOI:10.1016/s0040-4039(97)10662-1
日期:1998.2
2,3-Disubstituted pyrrolo[2,3-b]pyridines were synthesized by palladium-catalyzed heteroannulation of 2-amino-3-iodopyridine derivatives and internal alkynes with Pd(OAc)2, LiCl, and KOAc in DMF. The 2-trimethylsilyl-3-methylpyrrolo[2,3-b]pyridine was transformed to 2-substituted-3-methylpyrrolo[2,3-b]pyridines.
2,3-二取代的吡咯并[2,3- b ]吡啶是通过钯催化的2-氨基-3-碘吡啶衍生物和内部炔烃与Pd(OAc)2,LiCl和KOAc在DMF中的杂环化反应合成的。将2-三甲基甲硅烷基-3-甲基吡咯并[2,3- b ]吡啶转化为2-取代的-3-甲基吡咯并[2,3- b ]吡啶。