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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 347745Generated: October 30, 2026

2-Ethylaniline → 2-Methylpentane

https://huagongshe.com/reaction/347745

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-EthylanilineHCID 11357—
Reactant2,4-DichloropyrimidineHCID 77531—
ReactantDiisopropylethylamineHCID 81531—
Solvent1-ButanolHCID 263—
Product2-MethylpentaneHCID 7892—
Product2-Chloro-4-(2-ethylanilino)pyrimidineHCID 17981145—

Reaction Conditions

Temperature100 °C

Reaction Steps

2,4-Dichloropyrimidine (596 mg, 4 mmol), 2-ethylaniline (494 ml, 4 mmol) and N,N-diisopropylethylamine (695 ml, 4 mmol) were dissolved in n-butanol (20 ml) with stirring. The reaction mixture was heated to 100° C. for 18 hours, allowed to cool to ambient temperature and evaporated onto silica (3 ml). The residue was purified by column chromatography eluting with EtOAc (0–20%): isohexane to give the title product as a colourless solid on evaporation (215 mg, 23%). NMR (CDCl3, 300 MHz): 1.20 (t, 3H), 2.61 (q, 2H), 6.26 (d, 1H), 6.80 (br, 1H) 7.31 (m, 4H), 8.04 (d, 1H); m/z: (ES−) 234.2 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07176212B2
Source datasetuspto-grants-2007_02
ORD IDord-c981408d6e2c4cafa0eed54994b5d123
Source noteuspto-grants-2007_02