Clean one-pot synthesis of 1,2,4-oxadiazoles under solvent-free conditions using microwave irradiation and potassium fluoride as catalyst and solid support
作者:Shahnaz Rostamizadeh、Hamid Reza Ghaieni、Reza Aryan、Ali Mohammad Amani
DOI:10.1016/j.tet.2009.11.063
日期:2010.1
Potassium fluoride was found to be an efficient catalyst and solid support for the synthesis of 3,5-disubstituted-1,2,4-oxadiazoles. In this work, a one-pot method for the synthesis of these compounds from the reaction of nitriles with hydroxylamine hydrochloride and acyl chloride in the presence of potassium fluoride under solvent-free conditions using microwave irradiation has been developed. The
发现氟化钾是用于合成3,5-二取代-1,2,4-恶二唑的有效催化剂和固体载体。在这项工作中,已经开发了一种一锅法,该方法是在无溶剂条件下使用微波辐射,在氟化钾存在下,腈与盐酸羟胺和酰氯的反应来合成这些化合物。与常规固体载体相比,使用氟化钾作为固体载体的优点是操作简单和产物分离方便。