Aryldiazonium tetrafluoroborates and hexafluorophosphates react with organotin compounds in an anhydrous organic solvent in the presence of Pd(OAc) e to give cross-coupling products. Aryldiazonium chlorides do not react under these conditions [1,2]. Aryldiazonium salts react with tetramethyltin in the presence of Pd(OAc) 2 in aqueous acetonitrile at about 20~ to give substituted toluenes in high yield. ~mole% Pd(()Ac')~ Y--(~II4N=+X-~ ~h'4S. Y(:.II4~h'