A metal-free isoamyl nitrite mediated efficient synthesis of 1,2,4-oxadiazoles
作者:Sharad A. Galave、Kishorkumar S. Kadam、Amol D. Sonawane、Vaibhav R. Pansare、Dinesh R. Garud
DOI:10.1016/j.tetlet.2023.154616
日期:2023.7
We report herein, a metal-free isoamyl nitrite mediated efficient synthesis of 1,2,4-oxadiazoles by one-pot cycloaddition reaction of aldoximes with nitriles. The structure of the 1,2,4-oxadiazole derivatives was confirmed by studies of spectral analysis. Current methodology provides a novel pathway to access 1,2,4-oxadiazole derivatives.
Some regularities of the synthesis of ethyl 3-aryl-1,2,4-oxadiazole-5-carboxylates
作者:A. A. Voronova、S. V. Baikov、G. G. Krasovskaya、A. V. Kolobov、E. R. Kofanov
DOI:10.1134/s1070428014110232
日期:2014.11
Features of amidoximes reactions with ethyl chlorooxalate in a wide range of solvents at the use of a number of bases were investigated. An efficient preparation method for ethyl 3-aryl-1,2,4-oxadiazole-5-carboxylates in acetonitrile in the presence of triethylamine was developed.