Journal of the American Chemical Society, Vol.133, No.38, 14908-14911, 2011
Oxidative Dinuclear Addition of a Pd-I-Pd-I Moiety to Arenes: Generation of mu-eta(3):eta(3)-Arene-Pd-2(II) Species
We report the oxidative dinuclear addition of a Pd-I-Pd-I bond to arenes. The oxidative dinuclear addition products, which have a bi-pi-allyl-type arene dipalladium(II) structure, were obtained from [2.2]paracyclophane, anthracene, tetracene, and pentacene. A systematic study of the reaction of [Pd-2(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 pi-sandwich Pd-I-Pd-I complexes.