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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 278057Generated: October 31, 2026

Hydrochloric Acid → HCID 4290625, compound

https://huagongshe.com/reaction/278057

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDL-alanineHCID 602—
ReactantPalmitoyl chlorideHCID 8206—
SolventSodium HydroxideHCID 14798—
ProductHCID 4290625HCID 429062570%

Reaction Conditions

Temperature50 °C

Reaction Steps

The compound may be prepared using the Schotten-Baumann procedure. Palmitoyl chloride (44.0 g, 0.16 mol) is added dropwise to a solution of DL-alanine (21.4 g, 0.24 mol) in 10% aqueous sodium hydroxide (200 ml) heated at 50° C. The pH of the reaction is monitored such that the pH does not drop below 10. After the addition is complete, the reaction is stirred for a further 1 hour before it is allowed to cool to room temperature and neutralised with concentrated hydrochloric acid. The resultant precipitate is collected by filtration, washed with water and allowed to dry in air. The product is recrystallised from ether-petrol to give 2-palmitoylaminoproprionic acid as a white solid (36.4 g, 70%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06359008B1
Source datasetuspto-grants-2002_03
ORD IDord-519eff6e63d84c0b9a33b3e4d2c77a39
Source noteuspto-grants-2002_03