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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 866538Generated: October 31, 2026

Cyanoacetic acid → 3-Amino-3,3-diphosphonopropanoic acid

https://huagongshe.com/reaction/866538

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyanoacetic acidHCID 9740—
ReactantPhosphorous acidHCID 107909—
SolventAcetoneHCID 180—
Product3-Amino-3,3-diphosphonopropanoic acidHCID 20556515—

Reaction Conditions

Temperature165 °C

Reaction Steps

A mixture of cyanoacetic acid (4.3 g, 0.5 mole), phosphorous acid (8.2 g, 0.1 mole), ISOPAR-M (20 g), and the wetting agents (0.25 g each) was heated at 165° C for 2 hours. The product was worked up with acetone to get yellow crystals of 1-amino-1,1-diphosphono-2-carboxy ethane, m.p. 255° C (decomposition), 55%, associated with traces of impurities.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04100167
Source datasetuspto-grants-1978_07
ORD IDord-c6f4be4f1c3b4c00887c53a220298922
Source noteuspto-grants-1978_07