Effect of composition of binary palladium alloys on direction of catalytic transformations of 1,2-cyclohexanediol

A study of the binary alloys of Pd with Ni, Ti, Cu, and Rh as regards the transformations of 1, 2-cyclohexanediol disclosed that the character of the products is strongly dependent on the nature of the second component of the alloy. Cyclohexanone and phenol predominate in the products obtained on the binary Pd alloys that contain Ni, Ti, or Cu, while the Pd-Rh alloys are selective catalysts for the dehydrogenation of 1,2-cyclohexanediol to pyrocatechol without forming phenol. © 1977 Plenum Publishing Corporation.