Reacción #2275671

Ecuación de reacción

p-toluenesulfonic acid

4-hydroxy-2-methoxybenzaldehyde

benzenesulfonamide

toluene

→

N-[(4-hydroxy-2-methoxyphenyl)methylidene]benzenesulfonamide

Disolventes

water

water

Condiciones de reacción

Tratamiento posterior

1. 1
   TemperaturaThe mixture was then heated
2. 2
   Otrohad separated
3. 3
   Filtraciónthe precipitated solid was filtered off
4. 4
   Otrodried under vacuum

Procedimiento

An equimolar mixture of 27.4 g (0.18 mol) 4-hydroxy-2-methoxybenzaldehyde and 28.3 g (0.18 mol) benzenesulfonamide was placed into toluene. 100 mg p-toluenesulfonic acid was added as a catalyst. The mixture was then heated under reflux on a water separator until the theoretically calculated quantity of water had separated. After cooling to room temperature, the precipitated solid was filtered off and dried under vacuum. Yield: 43.0 g (78.9%).

Fuente