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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1437138Generated: November 1, 2026

Hydrochloric Acid → Ethyl 5-(aminomethyl)-3-isoxazolecarboxylate

https://huagongshe.com/reaction/1437138

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl 5-(aminomethyl)isoxazole-3-carboxylate, 5-BOC protectedHCID 10588096—
SolventEthanolHCID 702—
Solvent1,4-DioxaneHCID 31275—
ProductEthyl 5-(aminomethyl)-3-isoxazolecarboxylateHCID 1085058891.7%

Reaction Conditions

Temperature20 °C

Reaction Steps

To a stirred solution of 5-(tert-butoxycarbonylaminomethyl)-isoxazole-3-carboxylic acid ethyl ester (1.954 g) (EP 0451790) in ethanol (15 ml) was added a solution of 4.0M hydrogen chloride in 1,4-dioxane (23 ml). The mixture was stirred at 20° C. for 22 h and the solvent evaporated in vacuo to give the title compound (1.128 g) as a pale brown solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07622464B2
Source datasetuspto-grants-2009_11
ORD IDord-679b4847c7f54a819a20d8a5d5e8f9d4
Source noteuspto-grants-2009_11