反应 #1726667

反应方程式

Dibenzothiophene

hydrogen peroxide

water

→

dibenzothiophene-S-oxide

溶剂

trifluoroacetic acid

反应条件

后处理

1. 1
   温度while cooling with ice so as
2. 2
   其他After the reaction
3. 3
   其他to precipitate crystals
4. 4
   过滤The crystals are recovered by filtration
5. 5
   洗涤washed with water
6. 6
   其他The obtained crystals are recrystallized with acetonitrile

实验过程

Dibenzothiophene (20.0 g) is suspended in 80.0 ml of trifluoroacetic acid at room temperature. Into the suspension is slowly dropped 12.4 ml of 30% aqueous hydrogen peroxide while cooling with ice so as to maintain the reaction temperature around 60° C. After completion of dropping, the reaction solution is stirred at room temperature for 30 minutes. After the reaction, the reaction solution is added to 1,000 ml of water to precipitate crystals. The crystals are recovered by filtration and washed with water. The obtained crystals are recrystallized with acetonitrile to obtain 19.2 g of dibenzothiophene-S-oxide.

来源