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Oxidative Dinuclear Addition of a PdI–PdI Moiety to Arenes: Generation of μ-η33-Arene-PdII2 Species

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journal contribution
posted on 28.09.2011, 00:00 by Tetsuro Murahashi, Kohei Takase, Masa-aki Oka, Sensuke Ogoshi
We report the oxidative dinuclear addition of a PdI–PdI bond to arenes. The oxidative dinuclear addition products, which have a bi-π-allyl-type arene dipalladium(II) structure, were obtained from [2.2]paracyclophane, anthracene, tetracene, and pentacene. A systematic study of the reaction of [Pd2(CH3CN)6][BF4]2 with benzene and polyacenes showed that the larger polyacenes, tetracene and pentacene, afforded the oxidative dinuclear addition products, while benzene, naphthalene, and anthracene gave the π-sandwich PdI–PdI complexes.