Hydrogen Peroxide → Dibenzothiophene sulfoxide

HRID 909986

Reaktionsgleichung

Reaktionsgleichung von HRID 909986
[CH:1]1[C:9]2[C:8]3[CH:10]=[CH:11][CH:12]=[CH:13][C:7]=3[S:6][C:5]=2[CH:4]=[CH:3][CH:2]=1.[OH:14]O.O>FC(F)(F)C(O)=O>[CH:1]1[C:9]2[C:8]3[CH:10]=[CH:11][CH:12]=[CH:13][C:7]=3[S:6](=[O:14])[C:5]=2[CH:4]=[CH:3][CH:2]=1

Komponenten

5

Edukt 3

HCID 784Hydrogen PeroxideHCID 962WaterHCID 3023Dibenzothiophene

Produkt 1

HCID 13898Dibenzothiophene sulfoxide

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6422Trifluoroacetic acidLösungsmittel

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

Dibenzothiophene (20.0 g) is suspended in 80.0 ml of trifluoroacetic acid at room temperature. To 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.

Aufarbeitung

  1. temperaturewhile cooling with ice so as
  2. customAfter the reaction
  3. customto precipitate crystals
  4. filtrationThe crystals are recovered by filtration
  5. washwashed with water
  6. customThe obtained crystals are recrystallized with acetonitrile

Quellen und Nachweise

ORD-Eintrag
ord-9216a22ca85c497ea02407fad91d4517
Quelldatensatz
uspto-grants-2011_09
Patentnummer
US08021819B2

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