Palladium‐Catalyzed Regioselective Cross‐Dehydrogenative Coupling of Benzofurans with Uracils at Room Temperature.

The Pd-catalyzed cross-dehydrogenative coupling (CDC) between two heteroarenes was developed. A variety of benzofuran and uracil derivatives were constructed through C–C bond formation by using CDC reactions. The substrates did not require prefunctionalization, and the products were obtained in good yields with good regioselectivities at room temperature.