The present paper deals with the synthesis of aminooxazole derivatives via thermal and ultrasonic methods using deep eutectic solvent as medium. It was observed that ultrasound- assisted method gave 90% yield in just 8min as against 3.5 h required to get 69% yield by thermal method. One of the compounds 4-(4-nitrophenyl)-1, 3-oxazol-2-amine synthesized by both methods were subjected to material characterization study via XRD, TGA and ...