In one aspect, compounds of Formula AA, or a pharmaceutically acceptable salt thereof, are featured: or a pharmaceutically acceptable salt thereof, wherein the variables shown in Formula A can be as defined anywhere herein.
A ligand-free iron-catalyzed method for the oxygenation of benzylic sp3 C–H bonds by molecular oxygen (1 atm) using a thiylradical as a cocatalyst has been developed. This transformation provides a facile access to amides, esters and ketones from readily accessible corresponding amines, ethers and alkanes. It features high regioselectivity, mild oxidative conditions and excellent functional group