There are provided a method of simply preparing a 1,4,6-substituted,
1,4-substituted, 1,6-substituted, or 1-substituted fulvene compound, the
intermediates of the fulvene compound, and a method of preparing an
ansa-metallocene compound in which two cyclopentadienyl ligands are
bridged by one carbon and there are substituents only at positions
adjacent to the bridging point of a cyclopentadienyl ligand, using the
fulvene compound.