تفاعل #481594

معادلة التفاعل

2-ethylanthraquinone

NBS

benzoyl peroxide

→

2-(1-bromoethyl)-anthraquinone

المذيبات

CCl4

ظروف التفاعل

المعالجة

1. 1
   درجة الحرارةat reflux for 1.5 hours
2. 2
   درجة الحرارةOn cooling
3. 3
   ترشيحthe precipitate is collected by filtration
4. 4
   غسيلwashed on the
5. 5
   ترشيحfilter with ethanol, hot water and finally ethanol again
6. 6
   أخرىAfter drying
7. 7
   أخرىthis may be used without further purification (i.e. recrystallisation from benzene/methanol (1:1))

الإجراء التجريبي

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)).

المصدر