Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | 3,5-Dibromoaniline | HCID 221512 | — |
| Reactant | 2-Chloro-4-methylpyrimidine | HCID 11629607 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | HCID 67431932 | HCID 67431932 | 85.4% |
Reaction Steps
A solution of 3,5-dibromoaniline (2.93 g, 11.67 mmol), 2-chloro-4-methylpyrimidine (1.5 g, 11.67 mmol), and acetic acid (0.701 mL, 12.25 mmol) in 1,4-dioxane (23.5 mL) was sealed in a pressure vessel under an argon atmosphere and heated at 120° C. for 17 hours. After being cooled to room temperature, the reaction mixture was partitioned between ethyl acetate (100 mL) and saturated aqueous sodium bicarbonate solution (40 mL). The layers were separated, and the organic layer was washed with brine, dried over sodium sulfate, filtered, and concentrated. Silica gel flash chromatography (10% to 30% ethyl acetate/hexanes) afforded N-(3,5-dibromophenyl)-4-methylpyrimidin-2-amine (3.6 g, 9.97 mmol, 85% yield, 95% purity) as a light yellow solid. MS ESI: [M+H]+ m/z 343.8.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08759366B2 |
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| Source dataset | uspto-grants-2014_06 |
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| ORD ID | ord-1b975ec9708e468f9322f87067e51f57 |
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| Source note | uspto-grants-2014_06 |
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