Catalytic oxidations of alcohols - Advances in Catalytic Activation of Dioxygen by Metal Complexes - page 145

The active catalyst is heterogeneous, being adsorbed on the insoluble
(filtration gave a filtrate devoid of activity). Besides fulfilling a role
as a catalyst support the acts as a base and as a water scavenger. The
mechanism illustrated in Figure 12 was postulated to explain the observed
results.

Osborn and coworkers 76,77 reported that CuCl in combination with
(TPAP) catalyzes the aerobic oxidation of alcohols. The
scope is rather limited, however, and the system would not appear to have

or