Solvent-free synthesis of new 2,4,6-triarylpyridines catalyzed by a Brønsted acidic ionic liquid as a green and reusable catalyst
作者:Hossein Behmadi、Shima Naderipour、Seyed Mahdi Saadati、Mohammad Barghamadi、Mohammad Shaker、Niloofar Tavakoli-Hoseini
DOI:10.1002/jhet.697
日期:2011.9
Some new 4‐(aryl)‐2,6‐di‐2‐naphthylpyridines and 4‐(aryl)‐2,6‐di‐2‐thienylpyridines have been prepared through three‐component condensation of 2‐acetylnaphthalene or 2‐acetylthiophene, aromatic aldehydes, and ammonium acetate in presence of 1‐(4‐sulfonylbutyl) pyridinium hydrogensulfate [(CH2)4SO3HPy][HSO4], a Brønsted acidic ionic liquid as a green and reusable catalyst in solvent‐free conditions
通过2-乙酰基萘或2-乙酰基噻吩的三组分缩合反应制备了一些新的4-(芳基)-2,6-二-2-萘吡啶和4-(芳基)-2,6-二-2-噻吩基吡啶,芳族醛和乙酸铵,在1-(4-磺酰基丁基)吡啶鎓硫酸氢盐[(CH 2)4 SO 3 HPy] [HSO 4 ]的存在下,是布朗斯台德酸性离子液体,可在无溶剂条件下用作绿色和可重复使用的催化剂。还准备了一些新的4,4'-(1,4-亚苯基)-双-(2,6-二芳基吡啶)。J.杂环化学。(2011)。