A Strategy Enabling Enantioselective Direct Conjugate Addition of Inert Aryl Methane Nucleophiles to Enals with a Chiral Amine Catalyst under Mild Conditions
作者:Tengfei Li、Jin Zhu、Deyan Wu、Xiangmin Li、Sinan Wang、Hao Li、Jian Li、Wei Wang
DOI:10.1002/chem.201300304
日期:2013.7.8
Nitro‐charged activation: An organocatalytic enantioselective conjugate addition of aryl methyl nucleophiles to enals has been developed to produce ubiquitous chiral benzylic building blocks (see scheme; TES=triethylsilyl). Taking advantage of the strongly electron‐withdrawing nature of nitro groups, which can be conveniently transformed into other functionalities, this functionality was incorporated
硝基电荷活化:已经开发了将有机芳基甲基亲核试剂加成到烯醛上的有机催化对映体选择性共轭物,以产生普遍存在的手性苄基结构单元(参见方案; TES =三乙基甲硅烷基)。利用硝基的强吸电子特性,可以方便地将其转化为其他官能团,该官能团作为临时活化基团并入芳族体系。