Palladium‐Catalyzed Cyanation of Aryl Halides Using Formamide and Cyanuric Chloride as a New “CN” Source

A new source of “CN” employing formamide and cyanuric chloride is introduced for the cyanation reactions. The treatment of formamide and 2,4,6‐trichloro‐1,3,5‐triazine (TCT; cyanuric chloride) afforded an efficient cyanating agent which it can be used as a nontoxic, readily available, and non‐expensive reagent in the cyanation transformations. In this study, palladium‐catalyzed cyanation of aryl halides was successfully accomplished using this new “CN” source in high yields.