Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methyl Acrylate | HCID 7294 | — |
| Reactant | Tri-o-tolylphosphine | HCID 80271 | — |
| Reactant | 5-Bromo-2-(1H-pyrazol-1-yl)pyridine | HCID 22631144 | — |
| Catalyst | palladium(II) acetate | HCID 167845 | — |
| Solvent | Diethyl Ether | HCID 3283 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 73990358 | HCID 73990358 | 88.9% |
Reaction Steps
A solution of the compound from step A (450 mg, 2.01 mmol) and tri(o-tolyl)phosphine (123 mg, 0.40 mmol) in DMF (8 mL) was cooled to 0° C. and purged with nitrogen for 15 min. TEA (0.56 mL, 4.02 mmol) and methyl acrylate (0.36 mL, 4.00 mmol) were added and purging was continued for 5 min. Palladium acetate (45 mg, 0.20 mmol) was added and the flask was stoppered and heated to 120° C. for 24 h. The cooled reaction mixture was diluted with ether (50 mL) and washed with water (2×25 mL) and brine (25 mL), dried (MgSO4), and concentrated. Purification by chromatography (SiO2, 4:1 hexane/ethyl acetate) yielded 356 mg (77%) of the title compound. MS 230 (M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06613747B2 |
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| Source dataset | uspto-grants-2003_09 |
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| ORD ID | ord-021c77fdd8824266beecf09c9efd8e95 |
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| Source note | uspto-grants-2003_09 |
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