Phenol → 1,1,1-Tribromo-2,2-bis(4-hydroxyphenyl)ethane

HRID 840335

Reaktionsgleichung

Reaktionsgleichung von HRID 840335
S(=O)(=O)(O)O.[C:6]1([OH:12])[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1.[Br:13][C:14]([Br:18])([Br:17])[CH:15]=O>O>[Br:13][C:14]([Br:18])([Br:17])[CH:15]([C:9]1[CH:10]=[CH:11][C:6]([OH:12])=[CH:7][CH:8]=1)[C:9]1[CH:10]=[CH:11][C:6]([OH:12])=[CH:7][CH:8]=1

Komponenten

5

Edukt 3

HCID 996PhenolHCID 1118Sulfuric AcidHCID 8256Tribromoacetaldehyde

Produkt 1

HCID 184210651,1,1-Tribromo-2,2-bis(4-hydroxyphenyl)ethane

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

A 4-necked 3-L flask, is equipped with a mechanical stirrer, a nitrogen inlet, and thermometer, is charged with 83% sulfuric acid (640 g) and phenol (354 g). To the resulting milky mixture, tribromoacetaldehyde (380 g) in an additional funnel is added dropwise. The reaction temperature is maintained below 30° C. After the addition, the mixture is allowed to stir at the room temperature for 18 hours, before water (640 g) is added. The resulting mixture is filtered and washed with more water to afford 1,1,1-tribromo-2,2-bis(4-hydroxyphenyl)ethane.

Aufarbeitung

  1. customA 4-necked 3-L flask, is equipped with a mechanical stirrer, a nitrogen inlet
  2. temperatureThe reaction temperature is maintained below 30° C
  3. additionAfter the addition
  4. additionis added
  5. filtrationThe resulting mixture is filtered
  6. washwashed with more water

Quellen und Nachweise

ORD-Eintrag
ord-32a1ed7043b04dc68d88530aff7f30ea
Quelldatensatz
uspto-grants-2002_04
Patentnummer
US06365671B1

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