stability of the 17-electron vinyl radical in CH2Cl2 at −80 °C. Warming to 20 °C of the 17-electron iron(III) complexes [7a−d]•+[PF6-] in solid state allows the vinyl−vinyl coupling providing the new binuclear bis(carbene) complexes 8a−d in 60−95% yield. The complex 8a was isolated as a pure diastereoisomer, whereas 8b was a mixture of the meso 8b(RS,SR) and dl 8b(RR,SS) isomers in the 2/1 ratio. The diastereoisomers
卡宾的[Cp *的Fe(
DPPE)(C(OME)Me)中] [CF 3 SO 3 ] [图2b中,Cp * =η 5 -C 5我5,
DPPE =亚乙基二(
二苯基膦)]是在97%产率制备从的[Cp *的Fe(CO)2(C(OME)Me)中] [CF 3 SO 3 ]在所述羰基
配体的光
化学位移,和
铁methoxycarbene的[Cp *的Fe(CO)(PME 3)(C(OME )Me)] [CF 3 SO 3 ](2C)中的溶液在所述酰基衍
生物Cp的烷基化得到(80%)*的Fe(PME 3)(CO)(COCH 3)(4)。通过处理Cp * Fe(
DPPE)(CH(OMe)Me)(5)合成了亚甲基亚
铁[Cp * Fe(
DPPE)(C(H)Me)] [PF 6 ](6))和
六氟磷酸的
水溶液。亚乙基6在溶液中与固态一样非常稳定,并且在50℃下通过NMR光谱未观察到分解反应。解析并精制了6的X射线晶体结构。Fe-C(37)键距(1