Hydrogen Peroxide → Catechol

HRID 22104

Reaktionsgleichung

Reaktionsgleichung von HRID 22104
[C:1]1([OH:7])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[O:8]1[CH2:13][CH2:12][O:11]CC1.OO>C1COC(N2C(=O)NC(=O)C(F)=C2)C1.O>[C:1]1([CH:6]=[CH:5][C:4]([OH:8])=[CH:3][CH:2]=1)[OH:7].[C:13]1([C:12](=[CH:6][CH:1]=[CH:2][CH:3]=1)[OH:11])[OH:8]

Komponenten

7

Edukt 3

HCID 784Hydrogen PeroxideHCID 996PhenolHCID 312751,4-Dioxane

Produkt 2

HCID 289CatecholHCID 785Hydroquinone

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 5386TegafurKatalysatorHCID 962WaterLösungsmittel

Reaktionsbedingungen

Temperatur
70 °C

Versuchsvorschrift

A stirrer, a cooler and a temperature indicator were provided to a four-necked flask having an internal volume of 200 ml; to this flask, 13.0 g of phenol, 4.0 g of 1,4-dioxane, 6.0 g of water and 1.3 g of TS-1 catalyst, prepared according to the above described procedure, were added, and heated to 70° C. by an oil bath. After the temperature of the mixture reached 70° C., 3.0 g of 31 weight % of hydrogen peroxide was added dropwise using a quantitative pump over 2 hours, and stirred further for 20 minutes after the addition. The reaction solution was analyzed by liquid chromatography, and the yields of hydroquinone and catechol were calculated. The results are shown in Table 1.

Aufarbeitung

  1. customA stirrer, a cooler and a temperature indicator were provided to a four-necked flask
  2. additionwere added
  3. customreached 70° C.
  4. customover 2 hours
  5. additionafter the addition

Quellen und Nachweise

ORD-Eintrag
ord-d186916510c642398ce38322f1c0400d
Quelldatensatz
uspto-grants-1995_06
Patentnummer
US05426244

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