Iodoaziridine Derivatives as Novel Azahomoallyl Radical Precursors for 3+2 Cycloaddition Reactions with Alkenes

Functionalized pyrrolidine derivatives are accessible in good yields by radical iodine-transfer 3+2 cycloaddition of electron-rich alkenes with azahomoallyl radicals Eq. (1), which were generated by treating iodoaziridine derivatives with radical initiators. Ts=tosyl; 4-methylphenyl sulfonyl