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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1375660Generated: November 1, 2026

Trifluoroacetic acid → Ethyl 5-(3-aminophenyl)isoxazole-3-carboxylate

https://huagongshe.com/reaction/1375660

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantEthyl 5-(3-((tert-butoxycarbonyl)amino)phenyl)isoxazole-3-carboxylateHCID 49775748—
SolventDichloromethaneHCID 6344—
ProductEthyl 5-(3-aminophenyl)isoxazole-3-carboxylateHCID 44819012200.3%

Reaction Steps

5-(3-tert-butoxycarbonylamino-phenyl)-isoxazole-3-carboxylic acid ethyl ester (2.63 g, 0.00791 mole) in methylene chloride. (5 mL) was treated with trifluoroacetic acid (2.5 mL) at ambient temperature for 4 hours. The mixture was concentrated in vacuo to provide the titled compound (3.68 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07169797B2
Source datasetuspto-grants-2007_01
ORD IDord-ab818498796e48da9e6ca30aa09aa104
Source noteuspto-grants-2007_01