Enantioselective Friedel - Crafts Reactions of Aromatic Amines with Ethyl Glyoxylate in Pyridinium-Based Ionic Liquids
作者:Sanjay V. Malhotra、Ying Xiao
DOI:10.1071/ch06221
日期:——
The Friedel–Crafts reactions of aromatic amines with ethyl glyoxylate in pyridinium-based ionic liquids (ILs) are investigated using 2,2′-dihydroxy-1,1′-binaphthyl (BINOL) metal complexes as chiral catalysts. Reaction parameters such as the catalyst–IL compositions, reactant compositions, reaction time, and reaction temperature are studied. High yields and excellent enantioselectivities are achieved
使用 2,2'-二羟基-1,1'-联萘 (BINOL) 金属配合物作为手性催化剂,研究了芳香胺与乙醛酸乙酯在吡啶鎓离子液体 (ILs) 中的傅克反应。研究了催化剂-IL 组成、反应物组成、反应时间和反应温度等反应参数。在相对温和的条件下实现了高产率和优异的对映选择性。与传统的溶剂系统相比,ILs 也可以回收和重复使用。