Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | 2-Amino-4-methylpyrimidine | HCID 7939 | — |
| Reactant | 2,6-Dibromopyridine | HCID 12274 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 86676503 | HCID 86676503 | — |
Reaction Steps
A solution of 2-amino-4-methylpyrimidine (980 mg, 8.86 mmol) in THF (10 ml) was added dropwise to a cooled suspension of NaH (60% on oil, 1 g, 25.32 mmol) in THF (15 ml) under inert atmosphere. The reaction mixture was heated at 55° C. for 2 hours. The reaction was cooled down to 0° C. and a solution of 2,6-dibromopyridine (2 g, 8.44 mmol) in THF (20 ml) was added. The reaction mixture was heated at 80° C. for 5 hours. The reaction was cooled down to 0° C. and hydrolysed carefully with water (50 ml). After extraction with EtOAc (2×100 ml), the combined extractions were dried over MgSO4. After filtration and evaporation, N-(6-bromopyridin-2-yl)-4-methylpyrimidin-2-amine was obtained and purified dry flash chromatography over SiO2 eluting with DCM/MeOH(1%)/NEt3 (0.5%) (0.846 g, 38%). 1H NMR (300 MHz, DMSO-d6) δ 10.12 (br s, 1H), 8.44 (d, J=5.0 Hz, 1H), 8.36 (d, J=8.3 Hz, 1H), 7.69 (t, J=8.0 Hz, 1H), 7.18 (dd, J=7.6, 0.6 Hz, 1H), 6.91 (d, J=5.0 Hz, 1H), 2.42 (s, 3H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08962665B2 |
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| Source dataset | uspto-grants-2015_02 |
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| ORD ID | ord-a20fb4cea92f47608510a6471ca8197c |
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| Source note | uspto-grants-2015_02 |
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