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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 853762Generated: October 31, 2026

2,6-Difluorophenol → HCID 58932509, compound

https://huagongshe.com/reaction/853762

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,6-DifluorophenolHCID 94392—
Reactant2-Chloro-N-ethyl-5-nitro-4-pyrimidinamineHCID 7147233—
SolventDiisopropylethylamineHCID 81531—
ProductHCID 58932509HCID 5893250973%

Reaction Conditions

Temperature130 °C

Reaction Steps

2,6-Difluorophenol (2.1 g, 16.1 mmol) is added to a solution of (2-chloro-5-nitro-pyrimidin-4-yl)-ethyl-amine, 6, (3.0 g, 14.9 mmol) in N,N-diisopropyl ethylamine (50 mL). The reaction is heated to reflux (˜130° C.) under N2 for 3 hours at which point monitoring of the reaction via LC/MS indicates the starting material is consumed. The mixture is diluted with 1 N HCl (500 mL) and the resulting mixture extracted three times with EtOAc (500 mL). The organic layers are combined, dried over MgSO4 and concentrated in vacuo to an oil which is purified over silica (15% EtOAc/hexane) to afford 3.2 g (73% yield) of the desired product as a yellow oil. 1H NMR (300 MHz, CDCl3) δ 9.07 (s, 1H), 8.43 (br s, 1H), 7.13-7.23 (m, 1H), 6.98 (t, J=7.8 Hz, 2H), 3.44-3.53 (m, 2H), 1.22 (t, J=7.2 Hz, 3H); ESI/MS: 297 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07256196B1
Source datasetuspto-grants-2007_08
ORD IDord-359b5e1459d349b3ba3ecade29e229d7
Source noteuspto-grants-2007_08