Journal
ADVANCED SYNTHESIS & CATALYSIS
Volume 348, Issue 14, Pages 1826-1830Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adsc.200606156
Keywords
chroman-4-ones; ionic liquids; microwave heating; Stetter reaction
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This communication describes the first report of a microwave-assisted intramolecular Stetter reaction using imidazolium-type room temperature ionic liquids (RTILs) as solvents, with thiazolium salts and Et3N as catalysts. The features such as good to excellent yields, shorter reaction time (5-20 min), and recyclable and reusable ionic liquid and catalyst make this method an environmentally benign and highly efficient procedure for the preparation of chromanone derivatives.
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