Brønsted acidic ionic liquid-catalyzed tandem reaction: an efficient and sustainable approach towards the regioselective synthesis and molecular docking studies of 4-hydroxycoumarin-substituted indoles bearing lower <i>E</i>-factors
作者:Satyajit Samanta、Rana Chatterjee、Subhankar Sarkar、Satyajit Pal、Anindita Mukherjee、Ilya I. Butorin、Olga A. Konovalova、Tathagata Choudhuri、Koushik Chakraborty、Sougata Santra、Grigory V. Zyryanov、Adinath Majee
DOI:10.1039/d2ob01431a
日期:——
coumarin-functionalized indole derivatives via a tandem cyclization reaction of aniline and phenylglyoxal monohydrate. This reaction possibly proceeds through imine formation/nucleophilic addition/cyclization. In addition, this method shows lower E-factors. A clean reaction, easily accessible reactants, metal-free and environmentally friendly reaction conditions, and reusability of the catalyst are the notable