Reaktion #76210

ord-4e10606f65fc4c4ab3290ea0ed22b311

Reaktionsgleichung

O=C(CBr)c1ccc(C(F)(F)F)cc1
2-bromo-4′-trifluoromethylacetophenone
O=C[O-].[Na+]
sodium formate
O=C(CO)c1ccc(C(F)(F)F)cc1
title compound
Ausbeute 80.1%
O=C(CO)c1ccc(C(F)(F)F)cc1
2-Hydroxy-4′-trifluoromethylacetophenone
Ausbeute 80.1%

Lösungsmittel

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

  1. 1
    Temperaturwas heated
  2. 2
    Temperaturunder reflux
  3. 3
    EinengenThe reaction mixture was concentrated
  4. 4
    workup.ADDITIONpoured into water (500 mL)
  5. 5
    FiltrationThe precipitated solid was collected by filtration
  6. 6
    Waschenwashed with water
  7. 7
    Sonstigeair-dried

Vorschrift

A mixture of 2-bromo-4′-trifluoromethylacetophenone (40.0 g), sodium formate (40.0 g) and methanol (200 mL) was heated under reflux and stirred for 6 h. The reaction mixture was concentrated and poured into water (500 mL). The precipitated solid was collected by filtration, washed with water and air-dried to give the title compound as crystals (24.5 g, 80%). melting point: 112-114° C.

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US06699995B1uspto-grants-2004_03