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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 580773Generated: October 30, 2026

Hydrochloric Acid → HCID 21117230, compound

https://huagongshe.com/reaction/580773

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantL-AlanineHCID 5950—
ReactantTriethylamineHCID 8471—
Reactant2-Bromopropanoyl chlorideHCID 97980—
SolventDichloromethaneHCID 6344—
ProductHCID 21117230HCID 21117230—

Reaction Steps

69.26 g (404 mmol) of α-bromopropionic acid chloride is added in drops at 0° C. to 30 g (336.7 mmol) of alanine and 102.2 g (1010.2 mmol) of triethylamine in 600 ml of methylene chloride. In this case, the temperature remains between 0° C.-5° C. 1000 ml of 5% aqueous hydrochloric acid is added, and the organic phase is separated. The organic phase is extracted once more with 400 ml of 5% aqueous hydrochloric acid, dried on magnesium sulfate and evaporated to dryness in a vacuum. The residue is recrystallized from acetone/diisopropyl ether.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05919433
Source datasetuspto-grants-1999_07
ORD IDord-1e958d29bbb54188b811c73c49a45bb7
Source noteuspto-grants-1999_07