Reaktion #348711

Reaktionsgleichung

hydrochloric acid

2-ethyl-2-methyl-1-indanone

→

2-ethyl-2-methyl-indan

Lösungsmittel

water

ethanol

Reaktionsbedingungen

Aufarbeitung

1. 1
   Temperaturat reflux
2. 2
   workup.STIRRINGThe reaction mixture is subsequently stirred
3. 3
   Temperaturat reflux for 28 hours
4. 4
   Temperaturcooled
5. 5
   Filtrationfiltered
6. 6
   Waschenthe residue is washed with water/petroleum ether
7. 7
   ExtraktionThe filtrate is extracted with petroleum ether
8. 8
   Extraktionthe petroleum ether extract
9. 9
   Waschenis washed with water
10. 10
    Trocknendried over sodium sulphate

Vorschrift

335 g of zinc dust and 33.5 g of mercury (II) acetate and a solution of 330 cc of concentrated hydrochloric acid in 280 cc of water are rapidly added dropwise in a stirring apparatus. The mixture is boiled at reflux and a solution of 63 g of 2-ethyl-2-methyl-1-indanone in 525 cc of ethanol is added dropwise within 10 minutes while stirring. The reaction mixture is subsequently stirred at reflux for 28 hours, cooled, filtered, and the residue is washed with water/petroleum ether. The filtrate is extracted with petroleum ether, the petroleum ether extract is washed with water and dried over sodium sulphate. The crude 2-ethyl-2-methyl-indan, obtained as an oil after evaporating the solvent, is purified by chromatography on aluminium oxide/petroleum ether.

Quelle