Temperature-Controlled Switchable Cascade Reactions of Alkyne-Tethered Ketoximes and Cyanobenziodoxolone for Divergent Synthesis Cyano-Featured Isoxazolines and 3 H -Pyrrol-3-ones

Herein, we report a divergent radical cascade reaction of alkyne-tethered ketoximes with a cyanobenziodoxolone (CBX) reagent. Simply by modulating the reaction temperature, this process enables switchable and efficient access to a series of structurally valuable cyano-substituted isoxazolines and 3 H -pyrrol-3-ones. Notably, this protocol is characterized by low catalyst loading, broad substrate scope, and operational simplicity. Furthermore, the cyano-containing isoxazolines were obtained with excellent Z -selectivity.