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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 8435Generated: October 26, 2026

Hydrochloric Acid → Ethyl 2-(2,3,4-trifluoroanilino)propionate

https://huagongshe.com/reaction/8435

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthyl pyruvateHCID 12041—
Reactant1,2,3-Trifluoro-4-nitrobenzeneHCID 69871—
CatalystPalladiumHCID 23938—
SolventEthanolHCID 702—
ProductEthyl 2-(2,3,4-trifluoroanilino)propionateHCID 2201587197.9%

Reaction Conditions

Temperature40 °C

Reaction Steps

2,3,4-Trifluoronitrobenzene (1.01 g) and ethyl pyruvate (1.15 g) were dissolved in ethanol (8 ml). After adding 5% Pd—C (0.11 g) and conc. hydrochloric acid (0.03 g), the mixture was stirred at 40° C. under a hydrogen gas pressure of 2.94 MPa for 3 hours. After filtering off Pd—C, the obtained filtrate was concentrated under reduced pressure. Thus the title compound (1.38 g) was obtained as slightly yellow oily substance. Various spectral data of this product was identical with those obtained in Example 7.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07087778B2
Source datasetuspto-grants-2006_08
ORD IDord-70f6d86b6a29466c9e871d6a54e57035
Source noteuspto-grants-2006_08