Hydrochloric Acid → HCID 178469836, compound

Participants

Reaction Steps

Guanidine carbonate (18.0 g, 200 mmol) is dissolved in ethanol (300 ml), and then sodium alcoholate (13.6 g) and ethoxymethylenemalonic acid diethyl ester (43.2 g, 200 mmol) are added at room temperature. After stirring at room temperature for 4 days, the mixture is concentrated to dryness under reduced pressure. To the residue obtained, water (500 ml) is added and neutralized with hydrochloric acid, and then the crystal precipitated is collected by filtration and recrystallized, to yield a white crystal (30.5 g, 83%).

Provenance & Evidence