Oxalyl chloride → 2-Chloro-4-fluoro-5-nitrobenzoyl chloride

HRID 48959

Reaktionsgleichung

Reaktionsgleichung von HRID 48959
[Cl:1][C:2]1[CH:10]=[C:9]([F:11])[C:8]([N+:12]([O-:14])=[O:13])=[CH:7][C:3]=1[C:4](O)=[O:5].C(Cl)(=O)C([Cl:18])=O>CN(C)C=O.ClCCCl>[Cl:1][C:2]1[CH:10]=[C:9]([F:11])[C:8]([N+:12]([O-:14])=[O:13])=[CH:7][C:3]=1[C:4]([Cl:18])=[O:5]

Komponenten

5

Versuchsvorschrift

A mixture of 2-chloro-4-fluoro-5-nitrobenzoic acid (50.0 g, 0.228 mol) and N,N-dimethylformamide (5 drops) in 1,2-dichloroethane is treated dropwise with oxalyl chloride (30.8 mL, 0.353 mol), refluxed for 3 hours, cooled, and concentrated in vacuo to obtain the title product as an orange solid which is identified by NMR spectral analysis.

Aufarbeitung

  1. temperaturerefluxed for 3 hours
  2. temperaturecooled
  3. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-77741e50a88d4d9fb0e0a54fbf5403c2
Quelldatensatz
uspto-grants-2004_03
Patentnummer
US06706663B2

Verknüpfte Notizen

Wird geladen…