A directarylation of unactivated benzene with acyl peroxides was developed, affording biaryls in good to excellent yields. The transformation underwent radical pathway under metal-free, base-free and additive-free conditions with good functional groups compatibility.
A robust synthesis of phenanthridines has been described via Pd(II)-catalyzed domino C(sp2)–H activation/N-arylation using oxime esters with aryl acyl peroxides in a highly regioselective manner. This protocol is compatible with acetophenone as well as benzophenone-derived oxime esters and allows modular construction of functionalized phenanthridines with wide tolerance of electronic functionality