Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | Phenylacetylene | HCID 10821 | — |
| Reactant | 3-Bromo-5-chloropyridin-2-amine | HCID 2763971 | — |
| Reactant | Water ethylacetate | HCID 22728543 | — |
| Catalyst | Cuprous chloride | HCID 62652 | — |
| Catalyst | HCID 178418476 | HCID 178418476 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 18511691 | HCID 18511691 | 30% |
Reaction Steps
A solution of 3-bromo-5-chloro-2-pyridinamine (414 mg, 2.0 mmol), phenyl acetylene (225 mg, 2.2 mmol), copper (I) chloride (16 mg, 0.16 mmol), triethylamine (555 μl, 4.0 mmol) and dichlorobis(triphenylphosphine)palladium (II) (32 mg, 0.05 mmol) in DMF (0.5 ml) in a teflon pressure vessel was heated in a microwave (full power) for 30 sec, allowed to cool to RT and reheated for a further 30 sec. After cooling to RT, the reaction mixture was partioned between water—EtOAc. and the organic phase washed with sat. brine, dried over MgSO4, and concentrated. Purification by column chromatography on silica gel eluting with methylene chloride—methanol (99:1) and subsequent crystallisation from hexane gave the title compound as a yellow solid (130 mg, 0.6 mmol):
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06583162B1 |
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| Source dataset | uspto-grants-2003_06 |
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| ORD ID | ord-9af1969663da4117bb04f2b5890d6ac8 |
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| Source note | uspto-grants-2003_06 |
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