Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Styrene | HCID 7501 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 4-Bromo-2-nitrotoluene | HCID 123546 | — |
| Catalyst | Tri-o-tolylphosphine | HCID 80271 | — |
| Catalyst | palladium(II) acetate | HCID 167845 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 66808620 | HCID 66808620 | 35% |
Reaction Steps
A mixture of 4-bromo-2-nitrotoluene (0.432 g, 2.0 mmol), styrene (0.250 g, 2.40 mmol, 1.2 eq), palladium(II) acetate (4.5 mg, 0.020 mmol, 0.01 eq), tri-o-tolylphosphine (12.2 mg, 0.04 mmol, 0.02 eq), and triethylamine (0.405 g, 4.0 mmol, 2.0 eq) in dimethylformamide (2 mL) was heated in a 120° C. oil bath for 4 hours. The mixture was then cooled to room temperature and the solvent evaporated under a stream of nitrogen gas. The residue was partitioned between ethyl acetate and water and the aqueous layer further extracted with ethyl acetate. The combined organic layers were dried over anhydrous magnesium sulfate, filtered and evaporated. The residue was purified by chromatography on silica gel, eluting with a hexane/ethyl acetate gradient to provide the title compound as a yellow solid (166 mg, 35% yield).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07915411B2 |
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| Source dataset | uspto-grants-2011_03 |
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| ORD ID | ord-ee6d27de49074a8288224e99a1e47ce8 |
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| Source note | uspto-grants-2011_03 |
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