Reaktion #671476

Reaktionsgleichung

2-ethylphenol

tetrabutylammonium tribromide

sodium thiosulfate

→

expected product

Ausbeute 100.6%

4-Bromo-2-ethylphenol

Ausbeute 100.6%

Lösungsmittel

chloroform

Reaktionsbedingungen

Aufarbeitung

1. 1
   WaschenThe organic phase is washed with water
2. 2
   Trocknendried over magnesium sulfate
3. 3
   Filtrationfiltered
4. 4
   Sonstigeevaporated

Vorschrift

5.57 g (45 mmol) of 2-ethylphenol are placed in 250 ml of chloroform in a round-bottomed flask and under a stream of nitrogen. 43.4 g (90 mmol) of tetrabutylammonium tribromide are added portionwise. The medium is stirred for 1 hour at room temperature and is then hydrolysed with saturated aqueous sodium thiosulfate solution. The organic phase is washed with water, dried over magnesium sulfate, filtered and then evaporated. 9.1 g (100%) of the expected product are obtained in the form of a yellow oil.

Quelle