Reacción #481594

Ecuación de reacción

2-ethylanthraquinone

NBS

benzoyl peroxide

→

2-(1-bromoethyl)-anthraquinone

Disolventes

CCl4

Condiciones de reacción

Tratamiento posterior

1. 1
   Temperaturaat reflux for 1.5 hours
2. 2
   TemperaturaOn cooling
3. 3
   Filtraciónthe precipitate is collected by filtration
4. 4
   Lavadowashed on the
5. 5
   Filtraciónfilter with ethanol, hot water and finally ethanol again
6. 6
   OtroAfter drying
7. 7
   Otrothis may be used without further purification (i.e. recrystallisation from benzene/methanol (1:1))

Procedimiento

A mixture of 2-ethylanthraquinone (25 Kg, 105.9 mol), NBS (19.1 Kg, 107.3 mol) and benzoyl peroxide (70%, 200 g, 0.58 mol) in CCl4 (˜150L) is stirred at reflux for 1.5 hours. On cooling, the precipitate is collected by filtration and washed on the filter with ethanol, hot water and finally ethanol again. After drying, this may be used without further purification (i.e. recrystallisation from benzene/methanol (1:1)).

Fuente