Diazomethane → HCID 54343679, compound

Participants

Reaction Steps

Ethyl 2-(4-formamidopyrimidin-2-yl)-2-hydroxyiminoacetate (7.0 g.) was dissolved in dioxane (200 ml.) under heating and the resultant solution was cooled to ambient temperature in an ice bath, and then thereto was added a solution of diazomethane in diethyl ether with stirring until complete consumption of the starting materials. The reaction mixture was concentrated to give a brown oil, which was purified by column chromatography on silica gel (140 g.) using benzene as an developing solvent and a mixture of benzene and ethyl acetate (3:1) as an eluent to give a pale brown semisolid of ethyl 2-(4-formamidopyrimidin-2-yl)-2-methoxyiminoacetate (4.4 g.).

Provenance & Evidence