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dc.contributor.authorPrasoona, G-
dc.contributor.authorKishore, B-
dc.contributor.authorBrahmeshwari, G-
dc.identifier.issn0975-0983(Online); 0376-4699(Print)-
dc.description.abstractA simple and efficient one-pot synthesis of novel polyheterocyclic benzimidazo[1,2-a]- chromeno[4,3-d]pyrimidinones 4 via a three-component condensation of 2-aminobenzimidazole 1, aromatic aldehydes 2 and 4-hydroxy coumarin 3 catalyzed by Bronsted acid ionic liquid triethyl ammonium hydrogen sulphate [Et3NH][HSO4] under solvent-free conditions is reported. The main advantages of this protocol are short reaction time, easy work-up, operational simplicity, and excellent yields with high purity, without intervention of chromatography.en_US
dc.publisherNISCAIR-CSIR, Indiaen_US
dc.rights CC Attribution-Noncommercial-No Derivative Works 2.5 Indiaen_US
dc.sourceIJC-B Vol.59B(09) [September 2020]en_US
dc.subjectMulti-component synthesisen_US
dc.subjectTriethyl ammonium hydrogen sulphate [TEAHS]en_US
dc.subjectSolvent-free conditionsen_US
dc.titleA simple and efficient one-pot synthesis of novel benzimidazo[1,2-a]- chromeno[4,3-d] pyrimidinones catalyzed by [Et3NH][HSO4]en_US
Appears in Collections:IJC-B Vol.59B(09) [September 2020]

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