Notes. The easy catalytic reduction of HClO4, HNO3, and H5IO6 by CO in the presence of [Pd3(O2CMe)6]

Abstract

The reduction of HClO₄ to HCl by CO, catalysed in acetic acid by [Pd₃(O₂CMe)₆], is reported together with the parallel formation of either [{Pd(CO)Cl}_n] or β-PdCl₂ according to the reaction conditions. Under similar conditions HNO₃ is reduced first to NO₂ and then to NO; the known compound [Pd₄(O₂CMe)₄(CO)₄]·2MeCO₂H is the final product. With H₅IO₆ only insoluble PdI₂ is obtained under each reaction condition, corresponding to an easy reduction by CO of H₅IO₆.