Visible-light-promoted selective C–H amination of heteroarenes with heteroaromatic amines under metal-free conditions†
Abstract
The regioselective C–H amination of quinoline amides (C5) and imidazopyridines (C3) under transition-metal-free conditions at room temperature with a high degree of functional group tolerance is reported. The C–H amination promoted by visible light in the presence of a photocatalyst with a wide range of heteroamines makes the present protocol more sustainable.