Title: An Efficient Synthesis of Bis(indolyl)methanes (BIAs) Catalyzed by A Recyclable Solid Superacid SO42-/TiO2 Under Solvent-Free Condition
Volume: 3
Issue: 5
Author(s): Ji Shun-Jun and Zeng Xiao-Fei
Affiliation:
Keywords:
synthesis, recycle, bis(indolyl)methanes, solvent-free, indoles, solid superacid
Abstract: Green, mild and efficient electrophilic substitution reactions of indoles with various aldehydes were carried out using solid superacid SO4 2-/TiO2 as recyclable catalyst, which afforded the corresponding bis(indolyl)methanes in excellent yields.