Ammonia → 2-Fluoro-5-iodobenzamide

HRID 606822Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 606822
[F:1][C:2]1[CH:10]=[CH:9][C:8]([I:11])=[CH:7][C:3]=1[C:4](Cl)=[O:5].[NH3:12]>CO>[F:1][C:2]1[CH:10]=[CH:9][C:8]([I:11])=[CH:7][C:3]=1[C:4]([NH2:12])=[O:5]

Komponenten

4

Edukt 2

HCID 222Ammonia2×HCID 27782042-Fluoro-5-iodobenzoyl chloride

Produkt 1

HCID 670478112-Fluoro-5-iodobenzamideAusbeute 92 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel2×

Reaktionsbedingungen

Temperatur
0 °C

Versuchsvorschrift

Add slowly 2-fluoro-5-iodobenzoyl chloride (4.0 g, 14.1 mmol) to a 7 N solution of ammonia in methanol (20 mL, 141 mmol) cooled to 0° C. Stir at 0° C. for 45 min then warm to room temperature and stir 5 h. Add an additional amount of the 7 N solution of ammonia in methanol (20 mL) to the reaction mixture and stir for 15 h. Concentrate, dilute with ethyl acetate (300 mL) and wash twice with water (30 mL) and twice with an aqueous saturated solution of sodium chloride (30 mL). Dry (sodium sulfate), filter, and concentrate. Purify by silica gel chromatography, eluting with 60:40 to 40:60 hexanes:ethyl acetate, to give the title compound as a white solid (3.45 g, 92%).

Aufarbeitung

  1. temperaturethen warm to room temperature
  2. stirringstir 5 h
  3. stirringstir for 15 h
  4. concentrationConcentrate
  5. additiondilute with ethyl acetate (300 mL)
  6. washwash twice with water (30 mL) and twice with an aqueous saturated solution of sodium chloride (30 mL)
  7. dry with materialDry (sodium sulfate)
  8. filtrationfilter
  9. concentrationconcentrate
  10. customPurify by silica gel chromatography
  11. washeluting with 60:40 to 40:60 hexanes

Quellen und Nachweise

ORD-Eintrag
ord-3ebac6051a7e46fd8a3f066fedf7a341
Quelldatensatz
uspto-grants-2011_03
Patentnummer
US07915424B2

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