C. Lopez et al., Platinum(II) and palladium(II) compounds derived from [(eta(5)-C5H5)Fe{(eta(5)-C5H4)-CH = N-CH2-CH2-OH}], J ORGMET CH, 598(1), 2000, pp. 87-102
The reactions of the novel ferrocenyl ligand: [(eta(5)-C5H5)Fe{(eta(5)-C5H4
)-CH=N-CH2-CH2-OH}] (1) with platinum(II) and palladium(II) salts are descr
ibed. These reactions have allowed us to isolate and characterize the coord
ination complexes: [Pt{[(eta(5)-C5H4)-CH=N-CH2-CH2-OH]Fe(eta(5)-C5H5)}Cl-2(
dmso)] (2), [Pd{[(eta(5)-C5H4)-CH=N-CH2-CH2-OH]Fe(eta(5)-C5H5)}(2)Cl-2] (3)
and the cyclopalladated derivative: [Pd{[(eta(5)-C5H3)-CH=N-CH2-CH2-OH]Fe(
eta(5)-C5H5)}(mu-Cl)](2) (4). Compound 4 reacts with Fe(eta(5)-C5H5)}Cl(L)]
(L = py-d(5) (5) or PPh3 (6)) and [Pd{[(eta(5)-C5H3)-CH=N-CH2-CH2-OH]Fe(et
a(5)-C5H5)}(dppe)]Cl (7), which contain a five-membered metallacycle with a
sigma(Pd-C-sp2,C-ferrocene) bond. The reactions of 4 with tert-butylisonit
rile or the alkynes: R=C=C-R (with R = Et, Ph or CO2Me) are also described
and produced [Pd{[(eta(5)-C5H3)-CH=N-CH2-OH]Fe(eta(5)-C5H5)}Cl-CH2-OH]Fe(et
a(5)-C5H5)}Cl(L)] (with R = Et (9), Ph (10) or CO2Me (11)). All the compoun
ds included in this work were characterized by elemental analyses, infrared
and NMR spectroscopy. The X-ray crystal structures of 1, 6, 8 and 10 are a
lso reported. (C) 2000 Elsevier Science S.A. All rights reserved.