Reacción #443137

Ecuación de reacción

water

potassium nitrate

( 7 )

5-Fluoro-1-tetralone

→

title compound

5-Fluoro-8-nitro-1-tetralone

Disolventes

sulfuric acid

sulfuric acid

Condiciones de reacción

Tratamiento posterior

1. 1
   TemperaturaAfter cooling the solution
2. 2
   Temperaturawhile maintaining the internal temperature below 5° C
3. 3
   OtroThe resultant reaction mixture
4. 4
   workup.ADDITIONwas poured into ice-
5. 5
   Extracciónextracted with chloroform
6. 6
   LavadoThe extract was washed with saturated aqueous solution of sodium bicarbonate, water, and saturated brine in this order
7. 7
   Secadodried over anhydrous sodium sulfate
8. 8
   OtroThe solvent was evaporated
9. 9
   Otroresidue was recrystallized in methanol

Procedimiento

14 gm of the compound prepared in (7) above was dissolved into 100 ml of concentrated sulfuric acid. After cooling the solution, a solution of 9.05 gm of potassium nitrate in 80 ml of concentrated sulfuric acid was added dropwise while maintaining the internal temperature below 5° C. The stirring was continued for a further 30 minutes. The resultant reaction mixture was poured into ice-cooled water and extracted with chloroform. The extract was washed with saturated aqueous solution of sodium bicarbonate, water, and saturated brine in this order, and dried over anhydrous sodium sulfate. The solvent was evaporated and residue was recrystallized in methanol to obtain 9.15 gm of the title compound.

Fuente