Pyridine → [2-[[3,5-bis(trifluoromethyl)phenyl]carbamoyl]-4-chloro-phenyl] Acetate

HRID 421085

Reaktionsgleichung

Reaktionsgleichung von HRID 421085
[F:1][C:2]([F:25])([F:24])[C:3]1[CH:4]=[C:5]([NH:13][C:14](=[O:23])[C:15]2[CH:20]=[C:19]([Cl:21])[CH:18]=[CH:17][C:16]=2[OH:22])[CH:6]=[C:7]([C:9]([F:12])([F:11])[F:10])[CH:8]=1.N1C=CC=CC=1.[C:32](Cl)(=[O:34])[CH3:33]>O1CCCC1>[C:32]([O:22][C:16]1[CH:17]=[CH:18][C:19]([Cl:21])=[CH:20][C:15]=1[C:14]([NH:13][C:5]1[CH:6]=[C:7]([C:9]([F:10])([F:11])[F:12])[CH:8]=[C:3]([C:2]([F:1])([F:24])[F:25])[CH:4]=1)=[O:23])(=[O:34])[CH3:33]

Komponenten

5

Edukt 3

HCID 1049PyridineHCID 6367Acetyl chlorideHCID 5081913Imd-0354

Produkt 1

HCID 9979865[2-[[3,5-bis(trifluoromethyl)phenyl]carbamoyl]-4-chloro-phenyl] AcetateAusbeute 83 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

N-[3,5-Bis(trifluoromethyl)phenyl]-5-chloro-2-hydroxybenzamide (1.51 g, 3 mmol) and pyridine (285 mg, 3.6 mmol) were dissolved in tetrahydrofuran (6 mL). Acetyl chloride (234 mg, 3.3 mmol) was added dropwise under ice cooling, and the mixture was stirred at room temperature for 1 hour. The solvent was evaporated under reduced pressure. 2 N hydrochloric acid was added to the residue, and it was extracted with ethyl acetate. After the ethyl acetate layer was washed with water and brine, dried over anhydrous magnesium sulfate and concentrated, the residue was recrystallized from n-hexane-ethyl acetate to give the title compound (1.06 g, 83.0%) as a white solid.

Aufarbeitung

  1. customThe solvent was evaporated under reduced pressure
  2. addition2 N hydrochloric acid was added to the residue, and it
  3. extractionwas extracted with ethyl acetate
  4. washAfter the ethyl acetate layer was washed with water and brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. concentrationconcentrated
  7. customthe residue was recrystallized from n-hexane-ethyl acetate

Quellen und Nachweise

ORD-Eintrag
ord-601c0910dbb74169b4d5c7462ea9c473
Quelldatensatz
uspto-grants-2012_01
Patentnummer
US08097759B2

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