Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | ethyl 2-bromo-2-methylbutanoate | HCID 220969 | — |
| Reactant | HCID 58381715 | HCID 58381715 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 58381710 | HCID 58381710 | 90% |
Reaction Steps
To a solution of (5Z,8Z,11Z,14Z,17Z)-icosa-5,8,11,14,17-pentaene-1-thiol (305 mg, 1.00 mmol) in dry DMF (10 mL) at 0° C. under inert atmosphere was added NaH (60% in mineral oil, 44 mg, 1.1 mmol). After fifteen minutes ethyl 2-bromo-2-methylbutyrate (154 μL, 1.05 mmol) was added and the mixture was stirred for 1.5 hour at 0° C. The reaction mixture was quenched by addition of sat. aq. NH4Cl (20 mL). Water (20 mL) and heptane (50 mL) were added and the phases were separated. The water phase was extracted with heptane (2×25 mL). The combined organics were washed with water (25 mL) and brine (2×25 mL), dried (MgSO4), filtered and evaporated to give 377 mg of the title compound as a crude oil. Purification by flash chromatography on silica gel using isocratic elution (heptane:EtOAc 98:2) afforded 307 mg (77% yield) of the title compound as oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08759558B2 |
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| Source dataset | uspto-grants-2014_06 |
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| ORD ID | ord-0b0d95d87e664f7f92802796bddeb11d |
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| Source note | uspto-grants-2014_06 |
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