Methanol → Methyl (2-chlorophenyl)acetate

HRID 28504

Reaktionsgleichung

Reaktionsgleichung von HRID 28504
[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[CH2:8][C:9]([OH:11])=[O:10].[CH3:12]O>S(=O)(=O)(O)O>[Cl:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[CH2:8][C:9]([O:11][CH3:12])=[O:10]

Komponenten

4

Edukt 2

HCID 887MethanolHCID 17124o-Chlorophenylacetic acid

Produkt 1

HCID 93683Methyl (2-chlorophenyl)acetateAusbeute 97,5 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1118Sulfuric AcidKatalysator

Versuchsvorschrift

To 2-chlorophenylacetic acid (1.04 g, 6 mmol) in MeOH (25 mL) was added sulfuric acid (6 drops) and the solution was refluxed for 16 hours. After concentration, the residue was taken up in ethyl acetate and washed with sat'd aq. NaHCO3, H2O and brine. The organic layer was dried over Na2SO4 and concentrated to give methyl (2-chlorophenyl)acetate 6a (1.08 g, 97.5%) as a yellowish oil. GCMS (EI) m/z 184, 186 (M+).

Aufarbeitung

  1. temperaturethe solution was refluxed for 16 hours
  2. concentrationAfter concentration
  3. washwashed with sat'd aq. NaHCO3, H2O and brine
  4. dry with materialThe organic layer was dried over Na2SO4
  5. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-03a2d924d59c4293b06e1c1ba8bab7f0
Quelldatensatz
uspto-grants-2008_09
Patentnummer
US07419983B2

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