p-Toluenesulfonic acid → 3,3',6,6'-Tetramethyl-2,2'-biphenol

HRID 2297083Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2297083
C([C:5]1[C:10]([CH3:11])=[C:9]([OH:12])[C:8]([C:13]2[C:14]([OH:25])=[C:15]([CH3:24])[C:16](C(C)(C)C)=[CH:17][C:18]=2[CH3:19])=[C:7]([CH3:26])[CH:6]=1)(C)(C)C.C1(C)C=CC(S(O)(=O)=O)=CC=1>O>[CH3:19][C:18]1[CH:17]=[CH:16][C:15]([CH3:24])=[C:14]([OH:25])[C:13]=1[C:8]1[C:9]([OH:12])=[C:10]([CH3:11])[CH:5]=[CH:6][C:7]=1[CH3:26]

Komponenten

4

Edukt 2

HCID 6101p-Toluenesulfonic acidHCID 185446495,5'-Bis(t-butyl)-3,3',6,6'-tetramethyl-2,2'-biphenol

Produkt 1

HCID 113569233,3',6,6'-Tetramethyl-2,2'-biphenol

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

To a 50 mL flask were added 0.5 g of 5,5′-Bis(t-butyl)-3,3′,6,6′-tetramethyl-2,2′-biphenol, 5 mL of xylenes and 0.05 g of p-toluenesulfonic acid. The mixture was refluxed for about 2 hours. The mixture was cooled and water added. The mixture was extracted with hexanes; the organic layer was washed with water and dried over MgSO4. After removing the solvent, the residue was recrystallized from petroleum ether.

Aufarbeitung

  1. temperatureThe mixture was refluxed for about 2 hours
  2. temperatureThe mixture was cooled
  3. extractionThe mixture was extracted with hexanes
  4. washthe organic layer was washed with water
  5. dry with materialdried over MgSO4
  6. customAfter removing the solvent
  7. customthe residue was recrystallized from petroleum ether

Quellen und Nachweise

ORD-Eintrag
ord-35a99cd3e2f24e8699bdfde0ecadada8
Quelldatensatz
uspto-grants-2002_12
Patentnummer
US06489517B1

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