carbon–carbon bond-forming reaction via deaminative/decarboxylative cross-coupling of organoammonium salts with carboxylicacids was developed. Under the reaction conditions, polyfluoroaromatic carboxylicacids, propiolic acids and α-cyano benzyl carboxylicacid reacted smoothly with benzyl ammonium salts to produce the corresponding carbon–carbon coupling products in good-to-excellent yields.