Straightforward microwave-assisted synthesis of 2-thiazolines using Lawesson's reagent under solvent-free conditions
作者:Julio A. Seijas、M. Pilar Vázquez-Tato、José Crecente-Campo
DOI:10.1016/j.tet.2008.07.027
日期:2008.9
2-Thiazolines are synthesized from carboxylic acids and 1,2-aminoalcohols in the presence of Lawesson's reagent under solventless conditions. The developed method is valid for either substituted or unsubstituted aminoalcohols and a wide variety of aromatic, heteroaromatic and aliphatic carboxylic acids; thus it constitutes a general synthetic method for these kinds of compounds. The role of Lawesson's
2-噻唑啉是在Lawesson试剂存在下于无溶剂条件下由羧酸和1,2-氨基醇合成的。所开发的方法适用于取代或未取代的氨基醇以及多种芳香族,杂芳香族和脂肪族羧酸;因此,它构成了这类化合物的通用合成方法。Lawesson试剂的作用是双重的:将1,2-氨基醇转化为1,2-氨基硫醇并激活其与羧酸的反应,从而形成噻唑啉环,所有反应都在一个罐中进行。