ortho-phenyl and not alpha-ferrocenyl C–H activation. The complexes derived from FcCH=NCH(R)Ph (R = H, Me) were obtained as a mixture of E and Z imine isomers, and with R = Me the product obtained from the (S)-imine was isolated by recrystallisation as a single diastereoisomer. The configuration was determined by an X-ray crystal structure analysis as SC,RIr,E.
二茂铁基(Fc)和苯基(Ph)含有
亚胺FcCH=NCH(R)Ph和FcCH(R)N=CHPh(R=H和Me)使用[Cp*IrCl2]2和NaOAc在
CH2Cl2中环化。由于邻苯基而不是 α-
二茂铁基 C-H 活化,所有这些都导致形成中性
氯化物连接的半夹心彩虹环。衍生自 FcCH=NCH(R)Ph (R = H, Me) 的复合物作为 E 和 Z
亚胺异构体的混合物获得,并且当 R = Me 时,从 (S)-
亚胺获得的产物通过重结晶分离为单一的非对映异构体。构型通过 X 射线晶体结构分析确定为 SC,RIr,E。