反応 #481594

反応方程式

2-ethylanthraquinone

NBS

benzoyl peroxide

→

2-(1-bromoethyl)-anthraquinone

溶媒

CCl4

反応条件

後処理

1. 1
   温度at reflux for 1.5 hours
2. 2
   温度On cooling
3. 3
   ろ過the precipitate is collected by filtration
4. 4
   洗浄washed on the
5. 5
   ろ過filter with ethanol, hot water and finally ethanol again
6. 6
   その他After drying
7. 7
   その他this may be used without further purification (i.e. recrystallisation from benzene/methanol (1:1))

実験手順

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)).

出典