OICC Press Iranian Journal of Catalysis 2345-4865 3 1 2024 02 03 Facile one-pot multicomponent synthesis of 2-amino-6-(2-oxo-2H-chromen- 3-yl)-4-arylpyridine-3-carbonitriles using Brønsted acidic ionic liquid as catalyst under solvent-free conditions EN Janardhan Banothu Department of Chemistry, National Institute of Technology, Warangal, A.P., India. Rajitha Bavantula Department of Chemistry, National Institute of Technology, Warangal, A.P., India. Peter A. Crooks Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA. Journal Article 2024 02 03 A series of 2-amino pyridine-3-carbinitrile derivatives incorporated coumarin moiety has developed via multicomponent condensation of 3-acetyl-2H-chromen-2-one, arylaldehydes, malononitrile and ammonium acetate utilizing Brønsted acidic ionic liquid, (4-sulfobutyl)tris(4-sulfophenyl)phosphonium hydrogen sulfate as catalyst under solvent-free conditions. Good yields, short reaction times, straight forward workup, reusability of the ionic liquid and green conditions are the most obvious advantages of this methodology.