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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1968355Generated: October 29, 2026

Malonic Acid → HCID 131729134, compound

https://huagongshe.com/reaction/1968355

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMalonic AcidHCID 867—
ReactantCarbonic acid-guanidine (1:1)HCID 286947—
ReactantHCID 178513185HCID 178513185—
SolventWaterHCID 962—
ProductHCID 131729134HCID 131729134—

Reaction Conditions

Temperature90 °C

Reaction Steps

Malonic acid (200.0 g, 1.922 mol) was weighed into a 2-liter beaker with a magnetic stir bar and dissolved in 1500 ml of distilled water. Aminoguanidine bicarbonate (313.9 g, 2.31 mol) and guanidine carbonate (138.5 g, 0.769 mol) were added in portions with stirring as to avoid bubbling over the sides of the beaker due to the evolution of carbon dioxide during the reaction. The reaction was stirred at room temperature overnight (approximately 24 hours). The water was removed from the reaction mixture in vacuo with heating to approximately 90° C. for 4 hours. The product was recovered as a crystalline white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08425702B2
Source datasetuspto-grants-2013_04
ORD IDord-777162686c874554bfd629f3e9b13cca
Source noteuspto-grants-2013_04