Реакция #477556

ord-3b102fd51adf44c2840250d34e987142

Реагенты

Нет

Условия реакции

Подробные условия
See reaction.notes.procedure_details.

Обработка

  1. 1
    Температураwith heating
  2. 2
    КонцентрированиеThe reaction solution was concentrated
  3. 3
    Промывкаthe resulting colorless crystals were washed with water
  4. 4
    Другоеdried

Методика

A solution of 2-fluoro-4-hydroxybenzoic acid (50.0 g) and concentrated sulfuric acid (10 mL) in methanol (700 mL) was stirred at 90° C. for 16 hr with heating. The reaction solution was concentrated, and the resulting colorless crystals were washed with water, and dried to give the title compound (51 g, yield 94%) as colorless crystals.

Источник

DOI: 10.6084/m9.figshare.5104873.v1Патент: US08383647B2uspto-grants-2013_02