Catalyst‐Free Regioselective [3+2] Cycloadditions of α,β‐unsaturated
<i>N</i>
‐arylnitrones with Alkenes to Access Functionalized Isoxazolidines: A DFT Study
作者:Arnab Ghosh、Manoj V. Mane、Haridas B. Rode、Siddappa A. Patil、Balasubramanian Sridhar、Ramesh B. Dateer
DOI:10.1002/asia.201901754
日期:2020.3.16
catalyst-free regioselective [3+2]-cycloaddition of α,β-unsaturated N-arylnitrones with alkenes are developed. The series of synthetically important functionalized isoxazolidines are prepared in good to excellent yields by step economic pathway under ligand and transition-metal-free conditions. The regioselective cycloaddition pathway supported by control experiment and computational study.
开发了α,β-不饱和N-芳基硝基酮与烯烃的无催化剂区域选择性[3 + 2]-环加成反应。在无配体和无过渡金属的条件下,通过分步经济途径,可制备出一系列具有重要合成意义的重要功能化异恶唑烷。区域选择性环加成途径得到对照实验和计算研究的支持。