convenient and efficient method has been developed for the synthesis of nitronecompounds. Nitrone derivatives were synthesized in good yields via a green chemistry procedure using diaminoglyoxime and aldehyde or ketones in the presence of ZnO nanoparticles (NPs) as a catalyst in H2O as a solvent at room temperature. After the reaction course, ZnO NPs can be recycled and reused without any apparent loss
Phosphated tungstate as a new, reusable and efficient solid phosphoric acidcatalyst was synthesized and used to promote the reaction of diaminoglyoxime with various aromatic aldehydes. The prepared phosphated tungstate was characterized using various techniques including X‐ray diffraction, scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, Fourier transform infrared spectroscopy and