A representative kinetic time course for (IMes)Pd(TFA)2(H2O)-catalyzed intramolecular oxidative amidation of (Z)-4-hexenyltosylamide 4 obtained by gas-uptake methods. Data sampling occurred at a rate of 1 s−1 (not all data are shown). Conditions: [(IMes)Pd(TFA)2(H2O)] = 2.0 mM, [4] = 0.10 M, 0.8 mmol Na2CO3, 4.0 ml of toluene, initial pO2 = 700 torr, 4.0 ml of toluene, 80 °C.