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
作者:Ramu Tadikonda、Mangarao Nakka、Mahaboob Basha Gajula、Srinuvasarao Rayavarapu、Padma Rao Gollamudi、Siddaiah Vidavalur
DOI:10.1080/00397911.2014.883633
日期:2014.7.3
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.