Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Pivalaldehyde | HCID 12417 | — |
| Reactant | 1-Bromo-4-(propylsulfanyl)benzene | HCID 17933128 | — |
| Reactant | Butyllithium | HCID 178418339 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 67276267 | HCID 67276267 | 90.9% |
Reaction Steps
To a stirred solution of 1-bromo-4-(propylthio)benzene (500 mg, 2.16 mmol) in THF (10 ml) at −78° C. was added n-butyllithium (2.5 M in hexanes, 0.91 ml, 2.27 mmol). The resulting yellow solution was stirred at −78° C. for 15 minutes then pivaldehyde (0.29 ml, 2.59 mmol) was added. The mixture was allowed to warm to room temperature, during which time the solution turned colourless. The mixture was partitioned between ethyl acetate (60 ml) and water (30 ml). The organic phase was separated, washed with brine (30 ml), dried over MgSO4 filtered and evaporated to give a colourless oil. The crude product was chromatographed on silica eluting with 5% ethyl acetate in hexanes to give the title product as a pale yellow oil (468 mg). 1H NMR δ (CDCl3) 7.28-7.20 (4H, m), 4.36 (1H, s), 2.89 (2H, t, J=7.3 Hz), 1.84 (1H, s), 1.71-1.63 (2H, m), 1.02 (3H, t, J=7.3 Hz), 0.91 (9H, s).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08163956B2 |
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| Source dataset | uspto-grants-2012_04 |
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| ORD ID | ord-331db6f73fe54a1d9363bf74134a5d5f |
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| Source note | uspto-grants-2012_04 |
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