toluene-4-sulfonic acid in toluene 20 h; Heating;

toluene-4-sulfonic acid in acetone 18 h; Heating;

1: 95.2 percent / NaNH2, Fe(NO3)3 / liquid ammonia; toluene / reflux, 2 h then R.T. overnight 2: 2.) 10percent KOH, 3.) Amberlyst A-15 / 1.) Pd<P(C6H5)3>4, 2.) tetrabutylammonium hydrogen sulfate / 1.) 4.5 h, 2.) reflux, 4 h, 3.) acetone, R.T., 18 h 3: 92.4 percent / p-toluenesulfonic acid / toluene / 20 h / Heating View Scheme

1: 31 percent / O2 / cobalt(II) acetate tetrahydrate, ammonium bromide / acetic acid; cyclohexane / 4.5 h / 50 °C 2: 92.4 percent / p-toluenesulfonic acid / toluene / 20 h / Heating View Scheme

1: 2.) 10percent KOH, 3.) Amberlyst A-15 / 1.) Pd<P(C6H5)3>4, 2.) tetrabutylammonium hydrogen sulfate / 1.) 4.5 h, 2.) reflux, 4 h, 3.) acetone, R.T., 18 h 2: 92.4 percent / p-toluenesulfonic acid / toluene / 20 h / Heating View Scheme

HeatingpH=1;