Reaktion #485485

Reaktionsgleichung

2,5-dichloro-2,5-dimethyl-hexane

carbon disulphide

hexylbenzene

aluminium chloride

→

1,1,4,4-tetramethyl-6-hexyl-1,2,3,4-tetrahydro-naphthalene

Reaktionsbedingungen

Aufarbeitung

1. 1
   Temperaturwhile cooling with ice
2. 2
   workup.ADDITIONwas added dropwise
3. 3
   Extraktionextracted with ethyl acetate
4. 4
   Trocknendried over sodium sulphate
5. 5
   Sonstigeevaporated
6. 6
   workup.DISTILLATIONThe crude product was distilled in a high vacuum

Vorschrift

83 ml of hexylbenzene were treated with 1.8 g of aluminium chloride while cooling with ice. After brief stirring a solution of 40 g of 2,5-dichloro-2,5-dimethyl-hexane in 300 ml of carbon disulphide was added dropwise and the mixture was stirred at 0° C. for a further 2 hours. The reaction mixture was poured into ice/6N hydrochloric acid, extracted with ethyl acetate, dried over sodium sulphate and evaporated. The crude product was distilled in a high vacuum. There were obtained 25.5 g of 1,1,4,4-tetramethyl-6-hexyl-1,2,3,4-tetrahydro-naphthalene as a colourless oil, boiling point 141-152° C./0.8 mm.

Quelle