Oxypalladation organopalladium derivatives

Organopalladium derivatives containing Pd(II) can serve as sources of carbocationic species. Both alkene-Pd Tr-complexes and oxypalladated intermediates in the Wacker oxidation reactions can therefore generate carbocationic intermediates, which may then undergo anionotropic rearrangements (Scheme 6). In fact, it is rather remaikable that, despite the well-known involvanent of alkene-Pd Tr-complexes and oxypalladated intermediates, the Wacker-type oxidation of alkenes is relatively free from various possible rearrangement reactions. 

V.3.2.2 Oxypalladation-Reductive Elimination Domino Reactions with Organopalladium and Hydridopalladium Derivatives... 

The oxypalladation—reductive elimination domino reaction with organopalladium and hy-dridopaUadium derivatives provides a powerful and flexible tool for the construction of oxygen-containing rings. 

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