Journal
SYNLETT
Volume 27, Issue 9, Pages 1418-1422Publisher
GEORG THIEME VERLAG KG
DOI: 10.1055/s-0035-1561345
Keywords
multicomponent reactions; molten salt; ionic liquids; solvent-free conditions
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Funding
- Bu-Ali Sina University
- Iran National Science Foundation (INSF) [94002177]
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The bifunctional nanostructured molten salt [4,4-bipyridine]-1,1-diium tricyanomethanide has been employed as a highly efficient and powerful catalyst for the preparation of 2-amino-4H-chromenes. A wide variety of aromatic aldehydes was condensed with malononitrile and resorcinol, 1-naphthol or 2-naphthol under mild and solvent-free conditions. This protocol has the advantages of short reaction times, high to excellent yields, and straightforward workup.
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