Discovery of Dipeptide-Derived Catalysts for the Enantioselective Addition of Dimethylzinc to Aldehydes
作者:Seock Yong Kang、Yong Sun Park
DOI:10.1002/ejoc.201200063
日期:2012.3
new class of modular chiral catalysts derived from various amino acid-L-Pro dipeptides was prepared, and the catalysts were tested for their ability to catalyze the enantioselective addition of dimethylzinc to aromatic aldehydes. Dipeptides derived from L-Asp-L-Pro were identified as effective catalysts for the addition at room temperature with up to 97:3 er and 95 % yield.
制备了一类新的模块化手性催化剂,这些催化剂来源于各种氨基酸-L-Pro 二肽,并测试了催化剂催化二甲基锌对芳香醛的对映选择性加成的能力。源自 L-Asp-L-Pro 的二肽被确定为在室温下添加的有效催化剂,效率高达 97:3,产率为 95%。