Hydrochloric Acid → 2-Nitro-4-(trifluoromethyl)phenol

HRID 28248

Reaktionsgleichung

Reaktionsgleichung von HRID 28248
Cl[C:2]1[CH:7]=[CH:6][C:5]([C:8]([F:11])([F:10])[F:9])=[CH:4][C:3]=1[N+:12]([O-:14])=[O:13].[OH-:15].[Na+].Cl>CO>[N+:12]([C:3]1[CH:4]=[C:5]([C:8]([F:11])([F:10])[F:9])[CH:6]=[CH:7][C:2]=1[OH:15])([O-:14])=[O:13]

Komponenten

5

Edukt 3

HCID 313Hydrochloric AcidHCID 84624-Chloro-alpha,alpha,alpha-trifluoro-3-nitrotolueneHCID 14798Sodium Hydroxide

Produkt 1

HCID 98162-Nitro-4-(trifluoromethyl)phenol

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Versuchsvorschrift

45 g of 4-chloro-3-nitro-benzotrifluoride, dissolved in 150 ml of methanol, are initially introduced. 80 g of an ion exchanger resin containing quaternary ammonium groups are then introduced, the mixture is stirred for 10 minutes, 100 g of 50% strength sodium hydroxide solution are added dropwise, up to a maximum temperature of 70° C., and the mixture is stirred at 65° C. for 8 hours. After cooling the mixture, it is acidified with concentrated hydrochloric acid, the ion exchanger is filtered off and the crude product is distilled with steam. 27 g of 2-nitro-4-trifluoromethylphenol are obtained. nD20 : 1.5003.

Aufarbeitung

  1. additionare initially introduced
  2. additionare then introduced
  3. stirringthe mixture is stirred at 65° C. for 8 hours
  4. temperatureAfter cooling the mixture, it
  5. filtrationthe ion exchanger is filtered off
  6. distillationthe crude product is distilled with steam

Quellen und Nachweise

ORD-Eintrag
ord-e0580c0b6b924db7832a17c67c7f4c09
Quelldatensatz
uspto-grants-1980_09
Patentnummer
US04225731

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