Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 2-Chloro-5-ethylpyrimidine | HCID 3572763 | — |
| Reactant | HCID 58934836 | HCID 58934836 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 69518240 | HCID 69518240 | 97.8% |
Reaction Steps
To a mixture of ethyl 6-chloro-7-hydroxyl-2-(trifluoromethyl)-2H-chromene-3-carboxylate (0.2g, 0.62 mmol) and potassium carbonate (342 mg, 2.48 mmol) in 3 mL of dry DMF was added a reagent of 2-chloro-5-ethylpyrimidine (450 uL, 3.72 mmol). The reaction was then heated at 130° C. for 51 hours. After cooling to room temperature, to the reaction was added 150 mL of EtOAc. The resulting organic phase was washed with brine, and dried over anhydrous magnesium sulfate. After removing the solvents, the residue was purified on a short silica gel column with EtOAc/Hexane to afford 260 mg of a brown oil, which was used in the next step without further purification.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07259266B2 |
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| Source dataset | uspto-grants-2007_08 |
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| ORD ID | ord-5c45c057c1ef4dcba3c12f6f32d0774f |
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| Source note | uspto-grants-2007_08 |
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