Potassium Hydroxide → 2'-Fluoro-2-((methyloxy)carbonyl)-1,1'-biphenyl-4-carboxylic acid

Participants

Reaction Steps

To a stirred solution of 66.32A (1.00 g, 3.5 mmol) in THF (70.0 mL) and MeOH (70.0 mL) at 0° C. was slowly added potassium hydroxide (1.9 mL, 3.8 mmol) to maintain the temperature below 6° C. The reaction mixture was allowed to warm to room temperature and stirred for 48 hours. The reaction mixture was then concentrated in vacuo, acidified with 1N HCl, and extracted three times with EtOAc. After drying over anhydrous magnesium sulfate and filtering, the organic solvent was removed under reduced pressure and to give a white solid 66.32B (0.90 g, 95% yield).

Provenance & Evidence