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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 922836Generated: October 25, 2026

Ethyl Acetate → N-(4-chloro-3-(pyridin-2-yl)phenyl)-2-methyl-6-(trifluoromethyl)nicotinamide

https://huagongshe.com/reaction/922836

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant2-Methyl-6-(trifluoromethyl)nicotinoyl chlorideHCID 2775675—
Reactant4-Chloro-3-(pyridin-2-yl)anilineHCID 40151925—
SolventTetrahydrofuranHCID 8028—
ProductN-(4-chloro-3-(pyridin-2-yl)phenyl)-2-methyl-6-(trifluoromethyl)nicotinamideHCID 4462632388%

Reaction Steps

6-(trifluoromethyl)-2-methylpyridine-3-carbonyl chloride (1.68 g, 7.51 mmol) in 3 mL THF was added dropwise to a solution of 4-chloro-3-(pyridine-2-yl)aniline (1.21 g, 5.93 mmol) in THF (15 mL) at 0° C. The solution was stirred for 10 min., poured into EtOAc and washed with saturated aq. NaHCO3 (2×), and brine. The organics were dried (Na2SO4) and concentrated. The crude product was suspended in iPrOAc/Et2O (10 mL, 1:1), stirred at 0° C. for ½ hr, and collected by suction filtration to yield N-(4-chloro-3-(pyridin-2-yl)phenyl)-6-(trifluoromethyl)-2-methylpyridine-3-carboxamide (2.04 g, 5.21 mmol, 88% yield) as a white solid: TLC Rf=0.28 (35% EtOAc/Hex); 1H NMR (CDCl3, 400 MHz) δ 8.88 (bs, 1H), 8.41 (d, 1H), 7.96 (dd, 1H), 7.74 (m, 4H), 7.52 (d, 1H), 7.22 (m, 1H), 2.75 (s, 3H); MS (Q1) 392 (M)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09278961B2
Source datasetuspto-grants-2016_03
ORD IDord-7814e3716e9e41059fdeeac1e0205203
Source noteuspto-grants-2016_03