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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1903248Generated: October 26, 2026

Hydrochloric Acid → 3-Amino-4,4-difluorobutanoic acid hydrochloride

https://huagongshe.com/reaction/1903248

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl 3-amino-4,4-difluorobutanoateHCID 20468444—
Product3-Amino-4,4-difluorobutanoic acid hydrochlorideHCID 7140309880%

Reaction Conditions

Temperature100 °C

Reaction Steps

Ethyl 4,4-difluoro-3-amino-butanoate prepared as in Step B (3.340 g, 20 mM) is dissolved in 1 M HCl (20 ml) and the mixture heated at 100° C. for 3 hours. The solvent is evaporated in vacuo. The oily residue is crystallized from ethanol/ether; 2.800 g of 4,4-difluoro-3-amino-butanoic acid, hydrochloride (yield 80%). Mp: 150° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04435425
Source datasetuspto-grants-1984_03
ORD IDord-e92096add8f54b19b671f72cd9654322
Source noteuspto-grants-1984_03