Реакция #77237

ord-77741e50a88d4d9fb0e0a54fbf5403c2

Растворители

Условия реакции

Подробные условия
See reaction.notes.procedure_details.

Обработка

  1. 1
    Температураrefluxed for 3 hours
  2. 2
    Температураcooled
  3. 3
    Концентрированиеconcentrated in vacuo

Методика

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.

Источник

DOI: 10.6084/m9.figshare.5104873.v1Патент: US06706663B2uspto-grants-2004_03