Reacción #832755

Ecuación de reacción

1,3-benzodioxole

nitric acid

→

5-nitro-1,3-benzodioxole

Rendimiento 90.6%

Disolventes

acetic acid

acetic acid

Condiciones de reacción

Tratamiento posterior

1. 1
   Otroequipped with stirrer
2. 2
   Otrothe precipitated crystals were removed by filtration under suction
3. 3
   Lavadowashed with water
4. 4
   Otrorecrystallized from alcohol

Procedimiento

12.2 g of 1,3-benzodioxole were placed in 75 ml of glacial acetic acid in a 250 ml sulfonation flask equipped with stirrer, thermometer and dropping funnel and then nitrated at 15°-25° C. by the dropwise addition of 9 ml of nitric acid(d=1.4) in 30 ml of glacial acetic acid. The mixture was stirred at room temperature overnight, the precipitated crystals were removed by filtration under suction, washed with water and recrystallized from alcohol. There were obtained 14.0 g of 5-nitro-1,3-benzodioxole of melting point 149°-150° C. and from the mother liquor an additional 2.0 g of melting point 148°-149° C. Total yield: 90.6% of theory.

Fuente