Methanol → HCID 21904646, compound

Participants

Reaction Steps

α-Formyl(3-chloro-5-difluoromethoxyphenyl)acetic acid methyl ester (400 mg, 1.4 mmol; see step (vii) above) was dissolved in THF:methanol (50 mL, 9:1). Sodium borohydride was added and the mixture was stirred at ambient temperature for 30 minutes. Water was added and the mixture was concentrated to produce an aqueous suspension, which was taken up in ethyl acetate and water. The phases were separated and the organic phase was washed with sodium chloride (15% in water), dried over sodium sulphate, filtered and concentrated at reduced pressure. The residue was dissolved in methanol (30 μL) and hydrolyzed with sodium hydroxide (1 mL, 10 M) at ambient temperature for 10 minutes. Extractive work up gave 180 mg, 0.68 mmol (yield: 48%) of the sub-title compound.

Provenance & Evidence