反応 #2069933

反応方程式

Thianthrene

nitric acid

→

thianthrene-S-oxide

溶媒

water

acetic acid

反応条件

後処理

1. 1
   その他the reaction
2. 2
   その他the reaction solution obtained
3. 3
   その他to precipitate a crystal
4. 4
   ろ過The crystal was collected by filtration
5. 5
   その他recrystallized from acetonitrile

実験手順

Thianthrene (20 g) was refluxed in 300 ml of acetic acid, and 36 ml of dilute nitric acid was gradually added dropwise thereto. After allowing the reaction to proceed for 5 hours, the reaction solution obtained was poured in 1.2 liter of water to precipitate a crystal. The crystal was collected by filtration and then recrystallized from acetonitrile to obtain 12 g of thianthrene-S-oxide. 1H-NMR (400 MHz, CDCl3): δ 7.42 (t, 2H), 7.56 (t, 2H), 7.63 (d, 2H), 7.93 (d, 2H).

出典