Reaktion #486274

Reaktionsgleichung

hydrochloric acid

2,4-dinitrophenol

octadecyl bromide

sodium carbonate

→

1-octadecyloxy-2,4-dinitrobenzene

Ausbeute 79.1%

Lösungsmittel

dimethylformamide

water

Reaktionsbedingungen

Aufarbeitung

1. 1
   Extraktionextracted with ether
2. 2
   WaschenThe extracts were washed with water and brine
3. 3
   Trocknendried over magnesium sulfate
4. 4
   SonstigeThe solvent was removed
5. 5
   Sonstigethe solid recrystallized

Vorschrift

A mixture of 2,4-dinitrophenol (85 wt %, 6.72 g, 31 mmol), octadecyl bromide (20.7 g, 62 mmol), sodium carbonate (6.57 g, 62 mmol) and dimethylformamide (31 mL) was heated to 100° C. under a nitrogen atmosphere for 22 h. The cooled mixture was diluted with water (200 mL), acidified with 10N hydrochloric acid (50 mL) and extracted with ether. The extracts were washed with water and brine, and dried over magnesium sulfate. The solvent was removed and the solid recrystallized to give 1-octadecyloxy-2,4-dinitrobenzene (10.7 g, 79%): mp 63.5°-64.0° C.

Quelle