Catalytic sp3 C–H Oxidation of Peptides and Their Analogues by Radical Cation Salts: From Glycine Amides to Quinolines

Dual C-H functionalization of N-aryl amines: synthesis of polycyclic amines via an oxidative Povarov approach

Iminium ions generated in situ via copper(I) bromide catalyzed oxidation of N-aryl amines readily undergo [4 + 2] cycloadditions with a range of dienophiles. This method involves the functionalization of both a C(sp(3))-H and a C(sp(2))-H bond and enables the rapid construction of polycyclic amines under relatively mild conditions.

Remodeling of fumagillol: discovery of an oxygen-directed oxidative Mannich reaction

An efficient, two-step construction of highly complex alkaloid-like compounds from the natural product fumagillol is described. This approach, which mimics a biosynthetic cyclase/oxidase sequence, allows for rapid and efficient structure elaboration of the basic fumagillol scaffold with a variety of readily available coupling partners. Mechanistic experiments leading to the discovery of an oxygen-directed oxidative Mannich reaction are also described.