HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 853762Generated: October 31, 2026
2,6-Difluorophenol → HCID 58932509, compound
https://huagongshe.com/reaction/853762
Participants
| Role | Name | HCID | Charge |
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| Reactant | 2,6-Difluorophenol | HCID 94392 | — |
| Reactant | 2-Chloro-N-ethyl-5-nitro-4-pyrimidinamine | HCID 7147233 | — |
| Solvent | Diisopropylethylamine | HCID 81531 | — |
| Product | HCID 58932509 | HCID 58932509 | 73% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07256196B1 |
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| Source dataset | uspto-grants-2007_08 |
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| ORD ID | ord-359b5e1459d349b3ba3ecade29e229d7 |
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| Source note | uspto-grants-2007_08 |
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