Citric Acid → 4-Hydroxy-3-(trifluoromethyl)benzoic acid

HRID 491152

Reaktionsgleichung

Reaktionsgleichung von HRID 491152
C[O:2][C:3]1[CH:11]=[CH:10][C:6]([C:7]([OH:9])=[O:8])=[CH:5][C:4]=1[C:12]([F:15])([F:14])[F:13].C(O)(=O)CC(CC(O)=O)(C(O)=O)O>>[OH:2][C:3]1[CH:11]=[CH:10][C:6]([C:7]([OH:9])=[O:8])=[CH:5][C:4]=1[C:12]([F:13])([F:14])[F:15]

Komponenten

3

Reaktionsbedingungen

Temperatur
180 °C

Versuchsvorschrift

10.0 g (45.4 mmol) 4-methoxy-3-trifluoromethyl-benzoic acid and 75 g pyridinium-hydrochloride were mixed well and then heated to 180° C. under a nitrogen atmosphere for 5 h. The reaction mixture was poured onto 1 L 10% citric acid solution and extracted with 50 mL EtOAc. The organic phase was washed with 1 L water and dried over Na2SO4. After the desiccant and solvent had been eliminated the product was further reacted without purification.

Aufarbeitung

  1. extractionextracted with 50 mL EtOAc
  2. washThe organic phase was washed with 1 L water
  3. dry with materialdried over Na2SO4
  4. customwas further reacted without purification

Quellen und Nachweise

ORD-Eintrag
ord-3592c36111624b0c9a30edf57426b151
Quelldatensatz
uspto-grants-2009_05
Patentnummer
US07528129B2

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