Catalyst-Free, Multicomponent Reaction of Iodonium Ylides, Nitrosoarenes, and Olefins for the Synthesis of Isoxazolidine Derivatives

Abstract A general and efficient three-component protocol for the synthesis of isoxazolidines has been developed. A range of nitrosoarenes, olefins, as well as iodonium ylides can be subjected to this reaction to generate the N-aryl isoxazolidines derivatives with moderate to excellent yields. In addition, we demonstrate that this approach employs the 1,3-dipolar cycloaddition of nitrones generated in situ from iodonium ylides and nitroso compounds, with olefins in the absence of any catalysts and additives.