New routes to eta(1)- and (eta(3)<->eta(5))-indenylpalladium complexes: Synthesis, characterization, and reactivities

作者：Sui Seng C; Enright GD; Zargarian D^*

来源：Organometallics, 2004, 23(6): 1236-1246.

DOI：10.1021/om034253n

The dimer {( eta(3)-Ind)Pd(mu-Cl)}(2) (6) reacts with t-BuNC to give the dimeric species {(eta(1)-Ind)(t-BuNC)Pd(mu-Cl)}(2) (10), whereas reaction with PR3 gives the complexes (eta-Ind)Pd(PR3)Cl (R = Ph (4), Cy (7), Me (8), OMe (9)). Complexes 4 and (1-Me-Ind)Pd(PPh3)Cl (5) can also be prepared by reacting (PhCN)(2)PdCl2 with LiInd and PPh3. The structural characterization of complexes 4-7, 9, and 10 by H-1 and C-13 NMR spectroscopy and single-crystal X-ray diffraction studies has allowed an analysis of the indenyl ligand's mode of coordination, both in the solid-state and in solution. Compounds 4, 6, and 7 react with PhSiH3 in the absence of cocatalysts, whereas reaction with ethylene requires the presence of excess MAO to give polyethylene.

• 出版日期2004-3-15