An acid-functionalized ionic liquids (ILs) catalyzed cascade decarboxylative cyclization of 2-arylanilines with α-oxocarboxylic acids was developed. This approach offered a sustainable and practical pathway to afford a library of quinoxalines...

Chemdivergent control in functionalization of nitrogen directed C–H bonds has been achieved by switch in catalyst. Specifically, under Ir/IL catalytic system, the sustainable amidation reaction was realized by utilizing N-aroyloxycarbomate...

A mild and catalyst‐free sunlight induced protocol for the remote meta bromination of electron‐deficient indoles is described for the first time. Herein, N‐bromosaccharin is activated by sunlight irradiation. Alternately, a synergistic activation model (Sc(OTf)3/HFIP) has also been developed for the activation of haloniums, complementary to the light induced strategy. In addition, the cascade C6‐H bromination and benzylic C−H oxidation under photocatalytic conditions was also discussed. High regio‐and chem‐selectivity, mild reaction conditions, and scalability demonstrate great potential of the developed methods in practical applications and further functionalization.