In this work, the mixture of formamide and 2,4,6‐trichloro‐1,3,5‐triazine (cyanuric chloride or TCT) is introduced as a new amidating agent in Pd‐catalyzed aminocarbonylation of aryl halides. In the presence of a catalytic amount of palladium and TCT/formamide reagent, a range of aryl halides (X = Cl, Br, I) were converted into amides efficiently in N,N‐dimethylformamide at 120 °C.