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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2279244Generated: October 30, 2026

Triethylamine → N-[4-chloro-3-(trifluoromethyl)phenyl]-2,2-dimethylpropanamide

https://huagongshe.com/reaction/2279244

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantPivaloyl chlorideHCID 62493—
Reactant4-Chloro-3-(trifluoromethyl)anilineHCID 67574—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductN-[4-chloro-3-(trifluoromethyl)phenyl]-2,2-dimethylpropanamideHCID 71567363.1%

Reaction Steps

To a solution of 4-chloro-3-(trifluoromethyl) aniline (3a) (0.5 g, 2.55 mmol) in dry THF (8 mL), cooled to 0° C., Et3N (0.4 mL, 2.76 mmol) followed by PivCl (0.34 mL, 2.8 mmol) were added. The reaction mixture was stirred at room temperature for 4 h. After completion of reaction (by TLC), the reaction mixture was diluted with water (20 mL) and extracted with EtOAc (3×15 mL). The combined organic extracts were washed with water (30 mL). The organic layer was separated dried over Na2SO4 and concentrated under reduced pressure to give the crude material which was triturated with n-hexane to afford the desired amide 3b (0.45 g, 60%) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09133182B2
Source datasetuspto-grants-2015_09
ORD IDord-f13cefe71a1143008cb1a7574a284a5f
Source noteuspto-grants-2015_09