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
作者:Pravin V. Shinde、Vilas B. Labade、Jitendra B. Gujar、Bapurao B. Shingate、Murlidhar S. Shingare
DOI:10.1016/j.tetlet.2012.01.059
日期:2012.3
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.
三氟甲基磺酸铋已被发现可以有效且无溶剂地合成对称的2,4,6-三芳基吡啶,产率为86-93%。此外,已经开发了三氟甲磺酸铋对四唑并[1,5 - a ]喹啉-4-甲醛的催化反应性,从而意外地形成了它们的相应缩醛。