Yb(OTf)3âpybox is immobilized in a novel self-assembled ionic liquid hybrid silica and has been successfully applied as a catalyst for the asymmetric Strecker hydrocyanation of aldimines. This catalytic system can be reused for at least 6 times without any significant loss of activity and enantioselectivity.
Yb(OTf)3–pybox被固定于一种新型自组装
离子液体杂化
硅材料中,并成功应用于不对称Strecker腈化醛
亚胺的催化反应。该催化体系可至少重复使用6次,活性及对映选择性均无显著损失。