Chemistry Letters, Vol.35, No.7, 754-755, 2006
Dinuclear addition of the Pd-Pd moieties to 1,3-dienes
The reaction of a substitutionally labile dipalladium(I) complex [Pd-2(CH3CN)(6)][BF4](2) with isoprene or 1,3-butadiene in acetonitrile afforded [Pd-2(mu-eta(3):eta(1)-C5H8)(CH3CN)(5)][BF4](2) or [Pd-2(mu-eta(3):eta(1)-C4H6)(CH3CN)(5)][BF4](2). The structure of the isoprene complex was determined by X-ray crystallographic analyses. The interconversion between the [Pd-2(mu-eta(3):eta(1)-C5H8)(CH3CN)(5)][BF4](2) and [Pd-2(mu-eta(2):eta(2)-C5H8)(mu-Cl)Cl-2][PPh4] occurred facilely.