Reaction #955938

ord-1e884a77cb1745ee9cafc32c4fe2034e

Reaction equation

COc1cc(Cl)ccc1C(=O)O
4-chloro-2-methoxybenzoic acid
CO
MeOH
COC(=O)c1ccc(Cl)cc1OC
methyl 4-chloro-2-methoxybenzoate
Yield 96.0%

Solvents

Conditions

Detailed conditions
See reaction.notes.procedure_details.

Workup

  1. 1
    Temperaturewas refluxed overnight
  2. 2
    OtherMeOH was evaporated
  3. 3
    Extractionthe residue was extracted to EtOAc
  4. 4
    Washsuccessively washed with water and brine
  5. 5
    Dryingdried over MgSO4
  6. 6
    Filtrationfiltered
  7. 7
    Otherevaporated

Procedure

A suspension of 4-chloro-2-methoxybenzoic acid (5 g, 27 mmol) in MeOH (18 mL) and conc. H2SO4 (1.5 mL) was refluxed overnight. MeOH was evaporated and the residue was extracted to EtOAc and successively washed with water and brine, dried over MgSO4, filtered and evaporated to give methyl 4-chloro-2-methoxybenzoate as a white solid (5.17 g, 96%).

Source

DOI: 10.6084/m9.figshare.5104873.v1Patent: US08968708B2uspto-grants-2015_03