Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | 2983-89-3 | HCID 18675755 | — |
| Reactant | HCID 58381715 | HCID 58381715 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 58381685 | HCID 58381685 | 95% |
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-cyclobutane carboxylate (170 μL, 1.05 mmol) was added and the mixture was stirred for 1.5 hour at 0° C. The reaction was quenched by addition of sat. aq. NH4Cl (20 mL). Heptane (50 mL) was 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 (25 mL), dried (MgSO4), filtered and evaporated to give 409 mg of the title compound as a crude oil. Purification by flash chromatography on silica gel using isocratic elution (heptane:acetone 98:2) afforded 243 mg (56% 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-c7d71692427043fb97d45b0066a46768 |
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| Source note | uspto-grants-2014_06 |
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