Catalytic hydrogenation (reduction) and dehydrogenation (oxidation) reactions are of fundamental importance in the synthesis of organic molecules.[1] The hydrogenation of aldehydes/ketones and imines yields the corresponding alcohols and amines. In the reverse direction, dehydrogenation of alcohols and amines forms the corresponding aldehydes/ketones and imines. The catalytic hydrogenations and dehydrogenations of N- ...