Synthesis of 2,5-disubstituted pyrazolyl-1,3,4-oxadiazoles by the Huisgen reaction
作者:T. K. Shkineva、O. V. Serushkina、I. A. Vatsadze、T. E. Khoranyan、I. L. Dalinger
DOI:10.1007/s11172-022-3584-1
日期:2022.8
We developed an approach to the synthesis of 2,5-disubstituted pyrazole-containing 1,3,4-oxadiazoles by acylation of 5-(nitropyrazolyl)tetrazoles with alkyl, aryl, and hetaryl acyl chlorides with subsequent recyclization of the intermediate N-acyltetrazoles into 1,3,4-oxadiazoles and studied nitration of the obtained 2-aryl-5-(nitropyrazolyl)-1,3,4-oxadiazoles.
我们开发了一种通过5-(硝基吡唑基)四唑与烷基、芳基和杂芳基酰氯的酰化反应合成2,5-二取代吡唑基1,3,4-恶二唑的方法,随后将中间产物N-酰基四唑再循环转化为1,3,4-恶二唑,并研究了所得2-芳基-5-(硝基吡唑基)-1,3,4-恶二唑的硝化反应。