acetic acid; sodium nitrite in water

ammonium hydroxide 1 h; Irradiation;

ammonium hydroxide 0.5 h; Irradiation;

1: 1.) hexamethyldisilazane, chlorotrimethylsilane; 2.) hexamethyldisilazane, 0.5 M CF3SO3SiMe3, NH3 / 1.) 10 h, 145 deg C; 2.) toluene, 48 h, 145 deg C; 3.) MeOH, H2O, 4 h, reflux 2: 59 percent / NaNO2 / acetic acid; H2O / 0.08 h View Scheme

ammonium hydroxide 1a) CH3CN, RT, overnight, 1b) 30 min, reflux, 2) i-PrOH, 2d, RT; Yield given. Multistep reaction;

sodium hydroxide T=80°C; pH=14; Activation energyKineticsThermodynamic data; Further Variations:pH-valuesTemperatures;