At room temperature under an atmosphere of carbon monoxide the iron alkyls, (η5C5H5)(CO)2Fe-R (R = CH2CH3, CH2CH2CH3, CH2CH2CH(CH3)2, CH2CH2C(CH3)3) react with triethyloxonium tetrafluoroborate to provide the iron ethoxycarbenes, (η5-C5H5(CO)2Fe+=C(OEt)(R)BF4− in moderate to very good yield.
                                    在碳气氛下于室温
一氧化碳铁烷基,(η 5 ç 5 ħ 5)(CO)2的Fe-R(R = CH 2 CH 3,CH 2 CH 2 CH 3,CH 2 CH 2 CH(CH 3)2,CH 2 CH 2 C(CH 3)3)与四
氟硼酸三乙基反应,以提供
铁ethoxycarbenes,(η 5 -C 5 H ^ 5(CO)2的Fe + = C(OET)(R)BF 4−中等至非常高的产量。