An efficient bifunctional catalyst for the title reaction is cobalt tetra(hydroquinone)porphyrin 1. The oxidized form of 1 (shown right, R = hydroquinone) has one unit for the interaction with molecular O2, and another for the interaction with the Pd catalyst. Thus, electrons can be transferred rapidly from the Pd complex to O2.
No takes yet. Share an insight, caveat, or question.
Grennberg et al. (1993) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: