(1,2,3,4,5-pentamethylcyclopentadienyl)(tetrahydrofuran)dicarbonyliron(II) tetrafluoroborate 、 {(η5-C5Me5)Fe(CO)2}CH2(CO){(η5-C5H5)Fe(CO)2}, η-(C)-enolate complex 以
二氯甲烷 为溶剂,
以62%的产率得到η5-C5(CH3)5Fe(CO)2-μ(3)-η3-(C,C,O)-CH2C{OFe(CO)2-η5-C5(CH3)5}-Fe(CO)2-η5-C5H5