1: With ammonia in water; toluene T=30 - 35°C; 0.583333 - 0.75 h; 2: With sodium azide; tributyltin chloride in xylene Heating / reflux; 3: With acetic acid in cyclohexane; water; acetone; xylene T=25 - 35°C; pH=4.0 - 4.5; 2 h; Product distribution / selectivity;

water; sodium hydrogencarbonate in toluene