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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1862992Generated: October 31, 2026

Beta-Alanine → HCID 20392989, compound

https://huagongshe.com/reaction/1862992

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBeta-AlanineHCID 239—
ReactantHydrochloric AcidHCID 313—
Reactant4-Chloro-3-nitrobenzophenoneHCID 41743—
ReactantSodium BicarbonateHCID 516892—
Solvent2-MethoxyethanolHCID 8019—
ProductHCID 20392989HCID 20392989100.7%

Reaction Steps

4-Chloro-3-nitrobenzophenone (10 g.) was added to a mixture of 3-aminopropionic acid (β-alanine) (10.1 g.) and sodium hydrogen carbonate (9.6 g.) in 2-methoxyethanol (100 ml.) which was then heated under reflux for 4 hours. The mixture was cooled, poured into ice-water (250 ml.) and brought to pH 3 by addition of concentrated hydrochloric acid. The solid obtained was filtered, washed with water and air-dried to give 3-(4-benzoyl-2-nitroanilino)propionic acid (12.1 g), m.p. 170°-5° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04167569
Source datasetuspto-grants-1979_09
ORD IDord-852afe11ac9e41bba06d43f0914faf83
Source noteuspto-grants-1979_09