Water → 2-Methoxyethyl alpha-(hydroxyimino)-2-phenylacetate

Participants

Reaction Steps

61.7 g (0.296 mol) of 2-methoxyethyl phenylglyoxalate are dissolved in 360 ml pyridine. 22.7 g (0.0.326 mol) of hydroxylammonium hydrochloride are added in portions to this solution. When the addition is complete, the reaction mixture is stirred at room temperature for 2 hours. After addition of ethyl acetate and water, the organic layer is separated, washed with diluted HCl and water and dried over magnesium sulfate. Evaporation of the solvent gives 68 g (100%) of crude 2-methoxyethyl α-(hydroxyimino)-2-phenylacetate as a slightly brownish liquid. This compound is used without further purification in the next step.

Provenance & Evidence