An efficient one-pot procedure for the preparation of 1,3,4-thiadiazoles in ionic liquid [bmim]BF4 as dual solvent and catalyst
作者:Shahnaz Rostamizadeh、Reza Aryan、Hamid R. Ghaieni、Ali M. Amani
DOI:10.1002/hc.20432
日期:2008.4
The one-pot three component condensation of hydrazine hydrate with substituted phenylisothiocyanates followed by the addition of substituted benzaldehydes in the presence of ionic liquid 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim]BF4) and in the absence of any other catalyst under mild condition afforded 1,3,4-thiadiazoles in excellent yields. The reaction workup is simple, and the ionic liquid
在离子液体 1-丁基-3-甲基咪唑鎓四氟硼酸盐 ([bmim]BF4) 存在下,在没有任何其他催化剂的情况下,水合肼与取代的异硫氰酸苯酯的一锅三组分缩合,然后加入取代的苯甲醛条件下以极好的收率提供了 1,3,4-噻二唑。反应后处理简单,离子液体很容易从反应中回收再利用。© 2008 Wiley Periodicals, Inc. 杂原子化学 19:320–324, 2008; 在线发表于 Wiley InterScience (www.interscience.wiley.com)。DOI 10.1002/hc.20432