Asymmetric Hydrocyanation of Hydrazones Catalyzed by Lanthanide−PYBOX Complexes
摘要:
[GRAPHICS]The asymmetric addition of HCN to hydrazones is catalyzed in high yield and good-to-excellent enantioselectivity by the easily prepared (PhPYBOX)ErCl3 complex. This constitutes the first example of asymmetric catalytic hydrocyanation of hydrazones.