摘要:
From the Pauson-Khand products 2-ferrocenylcyclopentenone (2) and 2-ferrocenyl-3-methylcyclopentenone (10) as starting materials, substituted ferrocene complexes (C5H5-eta(5)-C5H4)Fe(C5H5) (4), (CH3C5H4-eta(5)-C5H4)Fe(C5H5) (12), and (Me2C5H3-eta(5)-C5H4)Fe(C5H5) (16) were prepared. Metalation of 4, 12, and 16 with Mn(CO)(5)Br, Cr(CO)(3)(CH3CN)(3), FeCl2(THF)(n), and the deprotonated form of [CpFe(fluorene)](+) resulted in good yields of fulvalenyl-bridged heterobi- and polymetallic compounds. The molecular structures of [1-{(C5H4)Fe(C5H5)}-2-CH3C5H4]Mn(CO)(3) (13), [2-{(C5H4)Fe(C5H5)}-1,3-Me2C5H2] Mn(CO)(3) (17), [2-{(C5H4)Fe(C5H5)}-1,3-Me2C5H2]Fe(C5H5) (18), and [1-{(C5H4)Fe(C5H5)}-2,3,4,5-Me4C5]Fe(C5H5) (23) are reported.