A. Diazortiz et al., 1,3-DIPOLAR CYCLOADDITION OF NITRILES UNDER MICROWAVE IRRADIATION IN SOLVENT-FREE CONDITIONS, Heterocycles, 43(5), 1996, pp. 1021-1030
Several nitriles were allowed to react with nitrones or nitrile oxides
in the absence of solvent under microwave irradiation within 2-10 min
to give 2,3-dihydro-1,2,4-oxadiazoles or 1,2,4-oxadiazoles, respectiv
ely.