HYDROGENATION OF SALICYLALDEHYDE CATALYZED BY SILICA-SUPPORTED POLYSULFOSILOXANE-PLATINUM COMPLEX

A sulfur-containing acidic inorganic polymer, silica-supported polysul fosiloxane, has been synthesized and used as a ligand for preparing it s platinum complex. The platinum complex showed high activity and sele ctivity for the catalytic hydrogenation of salicylaldehyde to produce salicyl alcohol in about 95.7% yield at 30 degrees C and atmospheric h ydrogen pressure. The effect of reaction parameters such as Pt loading , reaction temperature, solvents and additives on the hydrogenation wa s studied. (C) 1997 by John Wiley & Sons, Ltd.