Synthesis of Bis-Indolylmethanes Containing 1,2,3-Triazolyl Catalyzed by Brønsted Acidic Ionic Liquid under Solvent-Free Conditions
A series of novel bis-indolylmethanes containing 1,2,3-triazolyl have been synthesized from the reaction of indoles with 4-formyl-1,2,3-triazole catalyzed by Brønsted acidic ionic liquid [PyNCH2CO2H][HSO4] under solvent-free conditions. The satisfactory results were obtained with excellent yields and short reaction time in the experimental procedure.
Jinglong Bu, Pengcheng Wang, Liqun Ai, Xiaoming Sang, Yungang Li
Y. H. Zhang et al., "Synthesis of Bis-Indolylmethanes Containing 1,2,3-Triazolyl Catalyzed by Brønsted Acidic Ionic Liquid under Solvent-Free Conditions", Advanced Materials Research, Vols. 287-290, pp. 1696-1699, 2011