PEG-SO<sub>3</sub>H as a Catalyst for the Preparation of Bis-Indolyl and Tris-Indolyl Methanes in Aqueous Media
作者:V. Jhansi Rani、K. Veena Vani、C. Venkata Rao
DOI:10.1080/00397911.2010.551700
日期:2012.7.15
Abstract A facile, efficient, and green synthesis of bis-indolyl and tris-indolyl methanes has been developed by one-pot condensation of indole with structurally diverse aldehydes and ketones in the presence of poly(ethylene glycol)–bound sulfonicacid as catalyst at room temperature. GRAPHICAL ABSTRACT
Green and ecofriendly synthesis of indole‐condensed benzimidazole chalcones in water and their antimicrobial evaluations
作者:Gopala K. Dasari、Satyaveni Sunkara、Purna C. R. Gadupudi
DOI:10.1002/jhet.3856
日期:2020.3
An ecofriendly synthesis of novel benzimidazole‐substituted indole derivativescatalyzed by ZnO nanoparticles has been developed from simple condensation of acetyl benzimidazole and indole‐3‐carbaldehyde followed by Michael addition of indoles. This ZnO Nano particles (NP)‐catalyzed reaction has been carried out using both step‐wise and one‐pot methods, and both these methods provide excellent yield