Synthesis of Some New Isoxazolidines by 1,3-Dipolar Cycloaddition Reaction of Nitrones and Olefins

摘要

A series of new isoxazolidines 5a-j were synthesized by 1,3-dipolar cycloaddition reaction of different nitrones with substituted olefins under reflux condition.The yields of products following recrystallization from absolute ethanol were of the order of 40%-66%.IR,NMR and mass spectroscopies were used for identification of these compounds.