Synthesis of Carbazoles by Gold(I)-Catalyzed Carbocyclization of 2-(Enynyl)indoles
作者:Paramasivan Perumal、Chandrasekaran Praveen
DOI:10.1055/s-0030-1259537
日期:2011.3
carbazoles through gold(I)-catalyzed intramolecular hydroarylation of (Z)-2-(enynyl)indoles was achieved in good yields. The requisite (Z)-2-(enynyl)indoles were synthesized stereoselectively by trimethylgallium-promoted, Z-selective Wittig olefination of N-alkylindole-2-carboxaldehydes with propargyl ylides. Substrates possessing both alkyl as well as aromatic groups are well tolerated under these reaction