2,5,6-Trisubstituted N-Methylindoles from Site-Selective Suzuki-Miyaura Cross-Coupling, Twofold Heck and 6π-Electrocyclization-Dehydrogenation Reactions of 2,3,5-Tribromo-N-methylpyrrole
作者:Peter Langer、Serge-Mithérand Toguem
DOI:10.1055/s-0030-1259552
日期:2011.3
Site-selective Suzuki―Miyaura reactions of 2,3,5-tribromo-N-methylpyrrole afforded 5-aryl-2,3-dibromo-N-methylpyrroles. These products were transformed into 2,5,6-trisubstituted N-methylindoles by twofold Heck reactions and subsequent 6π-electrocyclization―dehydrogenation reactions.
2,3,5-三溴-N-甲基吡咯的位点选择性Suzuki-Miyaura反应得到5-芳基-2,3-二溴-N-甲基吡咯。这些产物通过双重Heck反应和随后的6π-电环化-脱氢反应转化为2,5,6-三取代的N-甲基吲哚。