Dimethyl acetylsuccinate → HCID 178433551, compound

Participants

Reaction Steps

Thiourea (80 g, 1.05 mol) and dimethyl acetylsuccinate (188 g, 1.0 mol) are added at room temperature to a solution of sodium (46 g, 2.0 mol) in methanol (800 ml). The reaction mixture is refluxed for 14 hours. The crystalline precipitate is filtered and added with stirring to a concentrated aqueous solution of hydrochloric acid (250 ml). The resulting colorless crystalline precipitate is filtered, washed with methanol and dried at high vacuum to give 4-hydroxy-2-mercapto-6-methyl-5-pyrimidinyl acetic acid (190 g, 95%).

Provenance & Evidence