SYNTHESIS OF ISOBUTYL 2,4-DINITROPHENYL SULPHONE
- Dissolve 340 mg of Isobutyl 2,4-dinitrophenyl sulphide in 10
ml of acetic acid, warm to about 50 °C and add dropwise 8 ml of 3 per cent aqueous
potassium permanganate solution.
- Maintain the solution at about 50 °C for 20
minutes, and then pass through the solution a stream of sulphur dioxide to decompose excess potassium
permanganate.
- Add crushed ice to the yellow solution to precipitate the crude
sulphone.
- Filter the precipitate, dry and recrystallise from rectified spirit
to give the yellow crystalline product, m.p. 105-106 °C; the yield is 190 mg
(50%).
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