Electrochemical Oxidation of Substituted Amide Oximes and 4,5-Dihydro-1,2,4-Oxadiazoles
作者:Mitsuhiro Okimoto、Yukio Takahashi
DOI:10.1246/bcsj.76.427
日期:2003.2
The electrooxidation of several substituted amide oximes to yield the corresponding nitriles, alcohols, and imidate was successfully carried out. The reaction products were dependent on the substituents. Additionally, 4,5-dihydro-1,2,4-oxadiazoles derived from amide oximes were electrooxidized to afford 1,2,4-oxadiazoles in good yields.
Efficient and Convenient Protocol for the Synthesis of 3,5-Disubstituted 1,2,4-Oxadiazoles Using HClO<sub>4</sub>-SiO<sub>2</sub> as a Heterogeneous Recyclable Catalyst
Silica-supported perchloric acid (HClO4-SiO2) was found to be a new, highly efficient, inexpensive, and reusable catalyst for a rapid and efficient synthesis of various 1,2,4-oxadiazoles with good to excellent yields under solvent-free conditions. The present methodology has been effectively utilized for the synthesis of oxolamine, an anti-inflammatory drug.
A CONVENIENT SYNTHESIS AND CYTOTOXIC ACTIVITY OF 3-ARYL-5-PENTYL-1,2,4-OXADIAZOLES FROM CARBOXYLIC ACID ESTERS AND ARYLAMIDOXIMES UNDER SOLVENT-FREE CONDITIONS
作者:CARLOS JONNATAN PIMENTEL BARROS、ZILYANE CARDOSO DE SOUZA、JUCLEITON JOSÉRUFINO DE FREITAS、PAULO BRUNO NORBERTO DA SILVA、GARDENIA CARMEN GADELHA MILITÃO、TERESINHA GONÇALVES DA SILVA、JULIANO CARLO RUFINO FREITAS、JOÃO RUFINO DE FREITAS FILHO
DOI:10.4067/s0717-97072014000100024
日期:——
Organic reactions in water: an efficient method for the synthesis of 1,2,4-oxadiazoles in water
作者:Babak Kaboudin、Leila Malekzadeh
DOI:10.1016/j.tetlet.2011.09.081
日期:2011.11
A simple and efficient process has been developed for the synthesis of 1,2,4-oxadiazoles in good yields through the reaction of amidoximes with anhydrides under catalyst-free conditions in water. (C) 2011 Elsevier Ltd. All rights reserved.