Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Carbonate | HCID 10340 | — |
| Reactant | Tributylvinyltin | HCID 81998 | — |
| Reactant | HCID 18507370 | HCID 18507370 | — |
| Catalyst | Tetrakis(triphenylphosphine)palladium | HCID 11979704 | — |
| Solvent | 1,4-Dioxane | HCID 31275 | — |
| Product | HCID 18507439 | HCID 18507439 | 8.1% |
Reaction Steps
To a stirred solution of 515 mg (2.23 mmol) 2-amino-4-chloro-6-phenyl-pyrimidine-5-carbonitrile in 20 ml dioxane under argon at room temperature were added 0.65 ml (2.23 mmol) vinyltributylstannane, 258 mg (0.22 mmol) tetrakis(triphenylphosphine)palladium(O) and 4.5 ml (9.0 mmol) 2M aqueous sodium carbonate solution. The reaction mixture was heated at reflux for 16 h, then concentrated in vacuo. The residue was partitioned between ethyl acetate and water and the organic phase washed with brine, dried over sodium sulfate, and concentrated in vacuo. Flash chromatography (1/1 ethyl acetate/hexane) followed by trituration in ether afforded 40 mg (8%) 2-Amino-4-phenyl-6-vinyl-pyrimidine-5-carbonitrile as a yellow crystalline solid. EI-MS m/e (%): 222 (M+, 85), 221 ([M—H]+, 100).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06586441B2 |
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| Source dataset | uspto-grants-2003_07 |
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| ORD ID | ord-583ffc9b987e4ac58d168fecb0545d65 |
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| Source note | uspto-grants-2003_07 |
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