Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | Tin tetrachloride | HCID 24287 | — |
| Reactant | 4-(2-Methyl-5-nitroanilino)-2-(3-pyridinyl)-6-(trifluoromethyl)pyrimidine | HCID 9969693 | — |
| Solvent | Ethanol | HCID 702 | — |
| Product | HCID 22732477 | HCID 22732477 | 44% |
Reaction Steps
To a solution of 4-(2-methyl,5-nitroanilino)-2-(3-pyridinyl)-6-(trifluoromethyl)pyrimidine (75 mg, 0.200 mmol) in anhydrous ethanol (10 ml) was added slowly anhydrous tin chloride (152 mg, 0.800 mmol). The mixture was refluxed for 1 h and then rotary evaporated to leave a brown oil. The brown oil was basified with 2N NaOH to give a final pH of 8. The resulting precipitate was filtered and washed with ethyl acetate. The aqueous phase and organic phase was combined, washed with water (1×20 ml) and dried over anhydrous sodium sulfate. The ethyl acetate was rotary evaporated to dryness to give a dark yellow solid (33 mg, 44%). 1H NMR (CDCl3): 9.69-9.68 (m, 1H), 8.73-8.67 (m, 2H), 7.53 (s, 1H), 7.43-7.39 (m, 1H), 7.11 (d, J=8.4 Hz, 1H), 6.72 (s, 1H), 6.64 (d, J=2.7 Hz, 1H), 6.61 (s, 1H), 3.01 (bs, 2H), 2.17 (s, 3H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06716851B2 |
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| Source dataset | uspto-grants-2004_04 |
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| ORD ID | ord-87c862d696694ce4a397f9065f8855dc |
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| Source note | uspto-grants-2004_04 |
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