Reaktion #63695

Reaktionsgleichung

hydrochloric acid

2-iodopropane

2-chloro-4-fluoro-5-nitrophenol

potassium carbonate

→

4-chloro-2-fluoro-5-(1-methylethoxy)nitrobenzene

Ausbeute 91.3%

Lösungsmittel

acetone

acetone

Reaktionsbedingungen

Aufarbeitung

1. 1
   workup.ADDITIONAfter complete addition
2. 2
   TemperaturThe mixture was cooled
3. 3
   ExtraktionThe resultant mixture was extracted with ethyl acetate
4. 4
   Waschenthe extract was washed with a 1N sodium hydroxide solution
5. 5
   ExtraktionThe washed extract
6. 6
   Trocknenwas dried over anhydrous magnesium sulfate
7. 7
   Filtrationwas filtered
8. 8
   SonstigeThe solvent was evaporated under reduced pressure

Vorschrift

To a stirred solution of 15.8 g (0.083 mole) of 2-chloro-4-fluoro-5-nitrophenol in 90 mL of acetone was added 17.1 g (0.12 mole) of potassium carbonate followed by a solution of 21.0 g (0.12 mole) of 2-iodopropane in 10 mL of acetone. After complete addition, the reaction mixture was heated at 60° C. for approximately 18 hours. The mixture was cooled and poured into a mixture of ice and concentrated hydrochloric acid. The resultant mixture was extracted with ethyl acetate, and the extract was washed with a 1N sodium hydroxide solution. The washed extract was dried over anhydrous magnesium sulfate and was filtered. The solvent was evaporated under reduced pressure to leave 17.7 g of 4-chloro-2-fluoro-5-(1-methylethoxy)nitrobenzene as a solid.

Quelle