Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methanol | HCID 887 | — |
| Reactant | Tetrahydrofuran | HCID 8028 | — |
| Reactant | Lithium hydroxide, monohydrate | HCID 168937 | — |
| Reactant | HCID 86746477 | HCID 86746477 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 53910850 | HCID 53910850 | 63% |
Reaction Steps
Ethyl, 7-(4,5-diphenyl-1H-imidazol-2-ylthio)-2-pentyl-2-heptenoate (0.37 g, 0.00078 mol) was combined with methanol (5 ml), tetrahydrofuran (2 ml) and lithium hydroxide monohydrate (0.16 g, 0.0038 mol) dissolved in water (3 ml), under a nitrogen atmosphere at ambient temperature. The reaction was heated to 50° for 4 hours, allowed to cool, concentrated then partitioned between ethyl acetate and saturated aqueous ammonium chloride. The organic layer was washed with water, brine, dried over magnesium sulfate and concentrated to give an oil. The product was purified by flash chromatography eluting toluene: ethyl acetate: acetic acid (80:20:2) to give the title compound (0.22 g, 0.00049 mol, 63% yield) as a white foam. 1H NMR (CDCl3) δ7.5-7.4(d, 4H), 7.32-7.17(m, 7H), 6.77(t, 1H), 3.08(t, 2H), 2.3-2.15(m, 4H), 1.76-1.68(m, 2H), 1.57-1.50(m, 2H), 1.4-1.2(m, 6H), 0.87(t, 3H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US05179117 |
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| Source dataset | uspto-grants-1993_01 |
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| ORD ID | ord-1e0435327d9e45f8b154bc7972c182ce |
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| Source note | uspto-grants-1993_01 |
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