Ultrasound-promoted synthesis of 3-trichloromethyl-5-alkyl(aryl)-1,2,4-oxadiazoles
作者:Lizandra C. Bretanha、Vinicius E. Teixeira、Marina Ritter、Geonir M. Siqueira、Wilson Cunico、Claudio M.P. Pereira、Rogério A. Freitag
DOI:10.1016/j.ultsonch.2010.09.016
日期:2011.5
The alternative synthesis of 12 1,2,4-oxadiazoles using ultrasound irradiation from trichloroacetoamidoxime and acyl chlorides is reported. Seven of them are novel compounds. The 3-trichloromethyl-5alkyl(aryl)-1,2,4-oxadiazoles have been synthesised in better yields and shorter reaction times compared to the conventional method. This protocol can be applicable for preparation of 1,2,4-oxadiazoles containing
据报道,利用三氯乙酰氨基肟和酰基氯的超声辐射可替代合成12 1,2,4-恶二唑。其中七个是新化合物。与常规方法相比,已经以更好的产率和更短的反应时间合成了3-三氯甲基-5烷基(芳基)-1,2,4-恶二唑。该方案可适用于制备在其C-5侧链连接有芳基或烷基的1,2,4-恶二唑。