Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Butyl iodide | HCID 10962 | — |
| Reactant | (L)-ethyl lactate | HCID 92831 | — |
| Catalyst | Silver(II) oxide | HCID 92152 | — |
| Solvent | Diethyl Ether | HCID 3283 | — |
| Product | HCID 53885111 | HCID 53885111 | 44% |
Reaction Steps
Silver oxide (77.5 g, 0.3 mol) was added to a mixture of (S)-(+)-ethyl lactate (49.4 g, 0.4 mol) with 1-iodobutane (100 g, 0.5 mol) over 2 hours, followed by allowing the mixture to stand at room temperature for 3 days, adding ether (30 ml) for dilution, filtering the resulting mixture, distilling off ether, washing the residue with 2N-NaOH aqueous solution, drying it over anhydrous MgSO4 and distilling under reduced pressure, to obtain (S)-ethyl 2-butoxypropionate (30.7 g, b.p. 64° C./7 mmHg), adding thereto 5N-NaOH aqueous solution (50 ml), agitating the mixture at room temperature for 5 hours, pouring it in 6N-hydrochloric acid (75 ml) to extract the resulting organic layer with ether, washing the resulting organic layer with water and distilling off ether, to obtain (S)-2-butoxypropionic acid (21. 4 g).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04973426 |
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| Source dataset | uspto-grants-1990_11 |
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| ORD ID | ord-efc2d6d7ecd64d04ba7fa467e678e87a |
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| Source note | uspto-grants-1990_11 |
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