COMPETITIVE OXIDATION OF ALCOHOLS IN AQUEOUS-PHASE USING PD C CATALYST/

A variety of aromatic and aliphatic alcohols and cyclohexanols were ox idized in the aqueous phase, both individually and competitively in pa irs, over a carbon-supported palladium catalyst, or the same catalyst modified by Co and Cd as additives. Some of these alcohols were unreac tive or less reactive individually, but more reactive in competition. These findings were explained in terms of the interaction of the subst rate with oxygen-covered metal catalyst, which depends on the dissocia tion ability of the alcohols. The promoting effect of Co and Cd additi ves on the Pd catalyst was also based on the concept of metal-substrat e interaction.