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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1895208Generated: November 1, 2026

Hydrochloric Acid → HCID 178468347, compound

https://huagongshe.com/reaction/1895208

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantAcetylacetoneHCID 31261—
Reactant2-Fluoro-5-(trifluoromethyl)anilineHCID 136349—
ReactantPotassium AcetateHCID 517044—
ReactantSodium NitriteHCID 23668193—
SolventAcetic AcidHCID 176—
SolventWaterHCID 962—
ProductHCID 178468347HCID 17846834764%

Reaction Steps

2-Fluoro-5-(trifluoromethyl)aniline (2.00 g, 15.6 mmol) was added to a solution of 15.6 mL of HOAc and 2.6 mL of concentrated HCl, stirred, followed by sodium nitrite (0.925 g, 13.4 mmol) in 4 mL of water dropwise at 0° C., and the mixture was stirred at 0° C. for 60 min. Then potassium acetate (3.28 g, 3.5 mmol) and acetylacetone (1.83 mL, 14.5 mmol) were added dropwise. The mixture was stirred at room temperature overnight, filtered. The precipitate was dissolved in CH2Cl2, washed with water, dried over Na2SO4 and concentrated under reduced pressure to give the title compound (2.06 g, 64% yield): 1H NMR (400 MHz, CDCl3): δ ppm 2.53 (s, 3H), 2.64 (s, 3H), 7.26-6.30 (m, 1H), 7.39-7.42 (m, 1H), 7.99-8.01 (m, 1H), 14.62 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08513251B2
Source datasetuspto-grants-2013_08
ORD IDord-6d0e58f094784b44a6e0fb0aa4d9f903
Source noteuspto-grants-2013_08