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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 515095Generated: October 25, 2026

Water → HCID 90314677, compound

https://huagongshe.com/reaction/515095

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPyridineHCID 1049—
ReactantMethyl 4-aminobenzoateHCID 12082—
Reactant2-Fluoro-4-(trifluoromethyl)benzoyl chlorideHCID 145580—
SolventDichloromethaneHCID 6344—
ProductHCID 90314677HCID 9031467784.3%

Reaction Steps

A solution of 2-fluoro-4-(trifluoromethyl)benzoyl chloride (3 g, 13.24 mmol) in dichloromethane (27.6 mL) was added dropwise to a mixture of methyl 4-aminobenzoate (2.0 g, 13.24 mmol), pyridine (3.21 mL, 39.72 mmol) and dichloromethane (41.4 mL) at 0° C. The reaction was stirred and allowed to warm up to room temperature over 2 hours. To the reaction, water (30 mL) was added. The solid was isolated by filtration, washed with water (2×30 mL) and hexane (2×30 mL) to yield methyl 4-[[2-fluoro-4-(trifluoromethyl)benzoyl]amino]benzoate (3.811 g, 84%) as a white solid. ESI-MS m/z calc. 341.07, found 342.2 (M+1)+; Retention time: 1.64 minutes (3 minutes run). 1H NMR (400 MHz, DMSO-d6) δ 10.97 (s, 1H), 8.02-7.96 (m, 2H), 7.96-7.89 (m, 2H), 7.89-7.83 (m, 2H), 7.76 (dd, J=8.0, 1.6 Hz, 1H), 3.85 (s, 3H) ppm.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09108903B2
Source datasetuspto-grants-2015_08
ORD IDord-677b14579be4481482283b4c356d1fb6
Source noteuspto-grants-2015_08