Réaction #2069933

Équation de réaction

Thianthrene

nitric acid

→

thianthrene-S-oxide

Solvants

water

acetic acid

Conditions de réaction

Traitement

1. 1
   Autrethe reaction
2. 2
   Autrethe reaction solution obtained
3. 3
   Autreto precipitate a crystal
4. 4
   FiltrationThe crystal was collected by filtration
5. 5
   Autrerecrystallized from acetonitrile

Mode opératoire

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).

Source