Catalyst‐Free Regioselective [3+2] Cycloadditions of α,β‐unsaturated
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‐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 functionalizedisoxazolidines are prepared in good to excellent yields by step economic pathway under ligand and transition-metal-free conditions. The regioselectivecycloaddition pathway supported by control experiment and computational study.
Microwave Induced 1,3-Depolar Cycloaddition Reactions of Nitrones
作者:Bipul Baruah、Dipak Prajapati、Anima Baruah、Jagir S. Sandhu
DOI:10.1080/00397919708004124
日期:1997.8
1,3-Dipolar cycloaddition reactions involving unreactive nitrones have been carried out successfully under microwave irradiations. The reaction of nitrones 1 and alkene 2 proceeded regiospecifically at atmospheric pressure and the corresponding isoxazolidines 3 were obtained in high yields.