Réaction #5849

Équation de réaction

ethanol

hydroxyazobenzene

1,10-dibromodecane

potassium hydroxide

→

crude product

4-(10-bromodecvloxy)-4'-dodecylazobenzene

Conditions de réaction

Traitement

1. 1
   AutreA 3000 ml three-necked round bottom flask was equipped with magnetic stirring
2. 2
   workup.ADDITIONThe flask was charged with 4-dodecyl-4
3. 3
   TempératureThe solution was refluxed for seven hours
4. 4
   AutreDuring the course of the reaction
5. 5
   Autrea yellow precipitate formed in the reaction mixture
6. 6
   Températurechilled in an ice-water bath

Mode opératoire

A 3000 ml three-necked round bottom flask was equipped with magnetic stirring, a heating mantle, a reflux condenser, and a nitrogen atmosphere. The flask was charged with 4-dodecyl-4,-hydroxyazobenzene (60.0 g, 0.164 mol), 1,10-dibromodecane, (66.95 g, 0.223 mol), potassium hydroxide (9.75 g, 0.174 mol), and ethanol (1260 ml). The solution was refluxed for seven hours. During the course of the reaction, a yellow precipitate formed in the reaction mixture. The reaction mixture was cooled to room temperature and chilled in an ice-water bath. A crude product was isolated by suction filtration, washed with water, then with hexane. The product was recrystallized from ethyl acetate.

Source