Co(III)-Catalyzed Synthesis of Quinazolines via C–H Activation of N‑Sulfinylimines and Benzimidates

C–H activation of arenes has been established as an important strategy for heterocycle synthesis via annulations between arenes and unsaturated coupling partners. However, nitriles failed to act as such a coupling partner. Dioxazolones have been employed as a synthon of nitriles, and subsequent coupling with arenes such as N-sulfinylimines and benzimidates bearing a functionalizable directing group provided facile access to two classes of quinazolines under Co­(III)-catalysis.