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m-Chloroperbenzoic acid → 2-(4-Hydroxybenzoyl)-3-phenylbenzothiophene-1-oxide

HRID 616628
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 616628
[OH:1][C:2]1[CH:24]=[CH:23][C:5]([C:6]([C:8]2[S:9][C:10]3[CH:22]=[CH:21][CH:20]=[CH:19][C:11]=3[C:12]=2[C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)=[O:7])=[CH:4][CH:3]=1.ClC1C=CC=C(C(OO)=[O:33])C=1>C(Cl)(Cl)Cl.C1C=CC=CC=1>[OH:1][C:2]1[CH:3]=[CH:4][C:5]([C:6]([C:8]2[S:9](=[O:33])[C:10]3[CH:22]=[CH:21][CH:20]=[CH:19][C:11]=3[C:12]=2[C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)=[O:7])=[CH:23][CH:24]=1
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Komponenten

5

Edukt 2

HCID 70297m-Chloroperbenzoic acidHCID 154064052-(4-Hydroxybenzoyl)-3-phenylbenzothiophene

Produkt 1

HCID 203683452-(4-Hydroxybenzoyl)-3-phenylbenzothiophene-1-oxide

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 241BenzeneLösungsmittelHCID 6212ChloroformLösungsmittel

Versuchsvorschrift

The product from Example 3 (5.0 g.; 0.0151 mole) and 2.8 g. of m-chloroperbenzoic acid were dissolved together in chloroform. The mixture was allowed to stand at room temperature for about 3 days. The solution then was washed twice with aqueous sodium bicarbonate solution, then with water, and was dried over magnesium sulfate. The solution then was concentrated to dryness. Thin-layer chromatography (TLC) run on the crude product revealed the presence of the starting material, some sulfone, and the desired product. The mixture was slurried in hot benzene, allowed to cool, and filtered to obtain 2.6 g. of a material having m.p. 140°-145° C. TLC on this product indicated some sulfone was still present. The solid was slurried in benzene, warmed, and filtered while hot. The collected solid then was slurried in benzene containing a small amount of ethanol, heated, and allowed to cool. The title compound (1.3 g.) crystallized out and was collected by filtration. TLC of this product indicated the presence only of traces of the sulfone contaminant. The melting point of the product was 215° C. The product was dried in vacuo at 120° C. overnight to further remove any solvent which might be present.

Aufarbeitung

  1. washThe solution then was washed twice with aqueous sodium bicarbonate solution
  2. dry with materialwith water, and was dried over magnesium sulfate
  3. concentrationThe solution then was concentrated to dryness
  4. temperatureto cool
  5. filtrationfiltered
  6. customto obtain 2.6 g
  7. temperaturewarmed
  8. filtrationfiltered while hot
  9. temperatureheated
  10. temperatureto cool
  11. customThe title compound (1.3 g.) crystallized out and
  12. filtrationwas collected by filtration
  13. customwas 215° C
  14. customThe product was dried in vacuo at 120° C. overnight
  15. customto further remove any solvent which

Quellen und Nachweise

ORD-Eintrag
ord-9cc25867103e4fe189de1441aba1f720
Quelldatensatz
uspto-grants-1978_02
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US04075227

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