A Mild and Efficient Method for<i>N</i>‐Arylnucleobase Synthesis<i>via</i>the Cross‐Coupling Reactions of Nucleobases with Arylboronic Acids Catalyzed by Simple Copper Salts
A simple and efficient copper-salt catalyzed N-arylation of nucleobases is reported. In a mixed solvent of MeOH and H2O, the coupling products were obtained in moderate to excellent yields at room temperature within a short time. A variety of substituted N-aryl nucleobases can be prepared through this procedure.