Abstract: Liquid phase cannizzaro reaction of p-nitrobenzaldehyde and DMF (N, N di methyl formamide) was carried out over H-Natrolite, H-Heulandite and H-Stilbite at 800 c. Zeolite especially Natrolite, Heulandite and Stilbite, effectively catalyzed the cannizzaro reaction by refluxing in DMF solvent where p-nitrobenzaldehyde was converted to p-nitrobenzoic acid and p-nitrobenzyl alcohol by self oxidation of reduction. The material was characterized by XRD (X-ray diffraction), FTIR (Fourier transform infrared spectroscopy). The various active aldehyde group compounds, such as O-nitrobenzaldehyde (O-NBAL), m-nitrobenzaldehyde, (m-NBAL), m-chlorobenzaldehyde (m-CBAL), p-chlorobenzaldehyde (p-CBAL) and benzaldehyde (BAL), were chosen the react with N, N dimethyl benzaldehyde/Acetone. P-nitrobenzaldehyde was found to be a good active aldehyde compound. The product was analyzed by gas chromatography and with FID detector. The conversion of p-nitrobenzaldehyde to p-nitrobenzoic acid (p-NBA) and p-nitrobenzyl alcohol (p-NBOH) maximum conversion was found to be 40.0% p-NBA and 10.0% p-NBOH from of H-Natrolite zeolite compare then Heulandite and Stilbite Zeolite.

 

Keywords: Oxidation, p-nitrobenzaldehyde, Cannizzaro reaction, zeolites, H-Natrolite, H-     Heulandite and H-Stilbite.