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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 346712Generated: October 31, 2026

Ethylamine hydrochloride → HCID 10821337, compound

https://huagongshe.com/reaction/346712

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylamine hydrochlorideHCID 11198—
ReactantPotassium CarbonateHCID 11430—
Reactant2,4-DifluoronitrobenzeneHCID 67967—
SolventAcetonitrileHCID 6342—
ProductHCID 10821337HCID 1082133781,447.5%

Reaction Steps

A suspension of 2,4-difluoro-1-nitrobenzene (0.50 g, 0.003 mmol), ethylamine hydrochloride (0.49 g, 0.006 mmol), K2CO3 (1.66 g, 0.012 mmol) in acetonitrile (30 mL) was stirred at room temperature for 16 hours and then filtered. The filtrate was concentrated and dissolved in small amount of CHCl3. Purification by column chromatography on silica using pentane/diethyl ether 95:5 as eluent gave 0.45 g of a yellow solid. 1H NMR (CDCl3) δ 8.23–8.18 (m, 1H), 8.08 (br s, 1H), 6.49–6.45 (m, 1H), 6.38–6.32 (m, 1H), 3.34–3.27 (m,2H), 1.38 (tr, J=7.22 Hz, 3H); 13C NMR (CDCl3) δ 167.55 (d, JCF=255.6 Hz), 147.4 (d, JCF=12.9 Hz), 129.91 (d, JCF=12.9 Hz), 128.71 (br s), 103.73 (d, JCF=24.8 Hz), 99.14 (d, JCF=27.6 Hz), 37.88, 14.05; MS (posESI) m/z=found 184.0653, calc 184.0648. Anal. (C2H18N4O2) C, H, N.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07173035B2
Source datasetuspto-grants-2007_02
ORD IDord-a1e2acaf11484d80acd2060526a27204
Source noteuspto-grants-2007_02