Journal
JOURNAL OF HETEROCYCLIC CHEMISTRY
Volume 46, Issue 4, Pages 791-795Publisher
WILEY
DOI: 10.1002/jhet.123
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Funding
- BITS, Pilani
- DRDO [ERIP/ER/0505034/M/01/902]
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A facile and convenient synthesis of 2-aryl-2,3-dihydroquinolin-4(1H)-one and 2-aryl-2,3-dihydro-4H-chromen-4-one has been described using ionic liquid catalyzed intramolecular cyclization of the corresponding 2'-aminochalcones and 2'-hydroxychalcones, respectively. The rapid and fairly general protocol affords product in good yield. Ionic liquid, 1-butyl-3-methylimidazolium tetrafluoroborate, was recovered and reused without loosing its efficiency.
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