The “oxypalladation route” or the “(π-allyl)palladium route”? The mechanism of the quinone-based palladium-catalyzed allylic oxidation of olefins to allylic carboxylates (shown schematically below) has been under debate for some time. Isotopically labeled substrates have been used to provide evidence for the “(π-allyl)palladium route” in the allylic acetoxylation of cyclohexene.
No takes yet. Share an insight, caveat, or question.
Grennberg et al. (1998) studied this question.