Cu-Catalyzed [3 + 3] Cycloaddition of Isocyanoacetates with Aziridines and Stereoselective Access to α,γ-Diamino Acids
作者:Germaine Pui Yann Kok、Hui Yang、Ming Wah Wong、Yu Zhao
DOI:10.1021/acs.orglett.8b01948
日期:2018.9.7
We report herein an efficient Cu-catalyzed formal [3 + 3] cycloaddition of isocyanoacetates with readily available aziridines of different substitution patterns, which provides a practical access to valuable 1,4,5,6-tetrahydropyrimidine derivatives. In particular, the use of enantiopure aziridines delivers disubstituted tetrahydropyrimidines bearing a 1,3-diamino unit in good yields as a single stereoisomer
我们在这里报告了异氰基乙酸盐与容易获得的具有不同取代模式的氮丙啶的铜催化的正式的[3 + 3]环式加成环合,可实际获得有价值的1,4,5,6-四氢嘧啶衍生物。特别地,使用对映体纯的氮丙啶以单个立体异构体(> 20:1 dr,> 99%ee)的良好产率递送带有1,3-二氨基单元的二取代四氢嘧啶。杂环产物也可以容易地转化成合成上有用的氨基醇衍生物或α,γ-二氨基酸。