Highly Enantioselective Conjugate Addition of Diethylzinc to Acyclic Enones with Fine-Tunable Phosphite−Pyridine Ligands
作者:Huihui Wan、Yuanchun Hu、Yuxue Liang、Shuang Gao、Junwei Wang、Zhuo Zheng、Xinquan Hu
DOI:10.1021/jo0345897
日期:2003.10.1
and (S)-2-amino-2'-hydroxy-4,4',6,6'-tetramethyl-1,1'-biphenyl was employed in Cu(I)-catalyzed conjugate addition of diethylzinc to acyclic enones. Excellent enantioselectivities (up to 98% ee) and highly catalytic activities were achieved for a variety of acyclic enones.
由(S)-2-氨基-2'-羟基-6,6'-二甲基-1,1'-联苯和(S)-2衍生的一系列新的亚磷酸酯-吡啶微调(P,N)配体-氨基-2'-羟基-4,4',6,6'-四甲基-1,1'-联苯用于二乙基锌与无环烯酮的Cu(I)催化共轭加成反应。各种无环烯酮均具有出色的对映选择性(高达98%ee)和高度催化活性。