Organocatalytic Enantioselective Addition of α-Aminoalkyl Radicals to Isoquinolines
作者:Xiangyuan Liu、Yang Liu、Guobi Chai、Baokun Qiao、Xiaowei Zhao、Zhiyong Jiang
DOI:10.1021/acs.orglett.8b02791
日期:2018.10.5
With a dual organocatalytic system involving a chiral phosphoric acid and a dicyanopyrazine-derived chromophore (DPZ) photosensitizer and under the irradiation with visible light, an enantioselective Minisci-type addition of α-amino acid-derived redox-active esters (RAEs) to isoquinolines has been developed. A variety of prochiral α-aminoalkyl radicals generated from RAEs were successfully introduced
借助手性磷酸和二氰基吡嗪衍生的生色团(DPZ)光敏剂的双重有机催化体系,并在可见光照射下,将α-氨基酸衍生的氧化还原活性酯(RAE)的对映选择性Minisci型加到异喹啉中已经被开发出来。从RAE产生的各种前手性α-氨基烷基已成功引入异喹啉,以高收率提供了一系列有价值的α-异喹啉取代的手性仲胺,具有良好或优异的对映选择性。