Cross-Dehydrogenative Coupling of Strong C(sp3)-H with N-Heteroarenes through Visible-Light-Induced Energy Transfer.

The sustainable cross-dehydrogenative coupling of strong C(sp3)-H with N-heteroarenes has been developed using an efficient organic photocatalyst. It features atomic- and step-economy, and acid-free conditions. Mechanism studies suggest a previous elusive energy transfer pathway from photocatalyst to N-heteroarenes and oxidants.