Bismuth triflate catalyzed solvent-free synthesis of 2,4,6-triaryl pyridines and an unexpected selective acetalization of tetrazolo[1,5-a]-quinoline-4-carbaldehydes

Bismuth triflate has been found as a potential catalyst for an efficient and solvent-free synthesis of symmetrical 2,4,6-triarylpyridines in 86–93% yields. Moreover, catalytic reactivity of bismuth triflate toward tetrazolo[1,5-a]quinoline-4-carbaldehydes for the unexpected formation of their corres...

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Bibliographic Details
Published in:Tetrahedron letters 2012-03, Vol.53 (12), p.1523-1527
Main Authors: Shinde, Pravin V., Labade, Vilas B., Gujar, Jitendra B., Shingate, Bapurao B., Shingare, Murlidhar S.
Format: Article
Language:English
Subjects:
Acetal formation
Acetals
Bismuth
Bismuth triflate
Catalysis
Catalysts
Formations
Pyridines
Synthesis (chemistry)
Tetrahedrons
Tetrazolo[1,5-a]-quinoline-4-carbaldehydes
Triarylpyridines
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Summary:Bismuth triflate has been found as a potential catalyst for an efficient and solvent-free synthesis of symmetrical 2,4,6-triarylpyridines in 86–93% yields. Moreover, catalytic reactivity of bismuth triflate toward tetrazolo[1,5-a]quinoline-4-carbaldehydes for the unexpected formation of their corresponding acetals has been exploited.
ISSN:0040-4039
1873-3581
DOI:10.1016/j.tetlet.2012.01.059