Sodium Hydroxide → HCID 54045511, compound

Participants

Reaction Steps

A mixture of S-methyl 2-(4-formamidopyridin-2-yl)thioglyoxylate (1.07 g.), methanol (20 ml.) and 1 N aqueous solution of sodium hydroxide (5.7 ml.) was stirred for 50 minutes at ambient temperature to give a solutions containing 2-(4-formamidopyridin-2-yl)glyoxylic acid. To the solution was added O-methylhydroxylamine hydrochloride (438 mg.), and the mixture was stirred for an hour at ambient temperature. After the removal of the solvent from the reaction mixture, to the residue was added water (5 ml.), and the mixture was washed with ethyl acetate and then water was distilled off. The remaining water in the residue was azeotropically removed with ethanol and benzene in turn to give a pale brown powder of 2-(4-formamidopyridin-2-yl)-2-methoxyiminoacetic acid (syn isomer) (960 mg.).

Provenance & Evidence