Abstract 4, 5-Dihydro-1, 2, 4-oxadiazoles were prepared using 1, 3-dipolar cycloaddition of imines with nitrile oxides. Further reductive NO bond cleavage furnished monosubstituted N- aryl amidines in good yield. Thus an efficient route for the synthesis of monosubstituted N- aryl amidines has been developed. Keywords: N-aryl amidines, 4, 5-dihydro-1, 2, 4- oxadiazoles, hydrogenolysis, Nitrile oxides, 1, 3-dipolar cycloaddition reaction
