2-Acyl-1-benzenesulfonyl-3-iodo-1H-indoles and 1-benzenesulfonyl-3-iodo-1H-indole-2-carbaldehyde give in satisfactory yields 1,3- and 3-substituted-β-carbolines, respectively, by combined palladium-catalyzed coupling with alk-1-ynes followed by 6-endo-dig cycloamination reactions.
2-酰基-1-苯磺酰基-3-
碘-1H-
吲哚和1-苯磺酰基-3-
碘-1H-
吲哚-2-羧醛通过与 alk-1-炔的联合
钯催化耦合反应,随后进行6-端内环的环
氨化反应,以令人满意的产率分别生成1,3-和3-取代的β-
吲哚啉。