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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 458166Generated: October 30, 2026

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

https://huagongshe.com/reaction/458166

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 numberUS07189847B2
Source datasetuspto-grants-2007_03
ORD IDord-dda1b36fb09e44bdb57ae9f32c79ea7c
Source noteuspto-grants-2007_03