Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2237646Generated: October 30, 2026

Ethylamine hydrochloride → HCID 10821337, compound

https://huagongshe.com/reaction/2237646

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); 13CNMR (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. (C12H18N4O2) C, H, N.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07718650B2
Source datasetuspto-grants-2010_05
ORD IDord-ba30b8b9c61a470a9a44b8d00f73366d
Source noteuspto-grants-2010_05