When Boc-L-Val-OH was used as a ligand for the enantioselective Pd(II)-catalyzed annulation of N,N-substituted aminomethyl ferrocene derivatives with diarylethynes, ferrocenes with planar chirality could be achieved with excellent enantioselectivity (up to 99% ee).
当Boc-L-Val-OH被用作Pd(II)催化的手性选择性环化反应的
配体时,N,N-取代
氨甲基二茂铁衍
生物与二芳基
乙炔发生环化反应,可以获得具有平面手性的
二茂铁,并且具有极好的对映选择性(高达99% ee)。