Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Iodine | HCID 807 | — |
| Reactant | Ethyl bromoacetate | HCID 7748 | — |
| Reactant | 3-Chloropropiophenone | HCID 70295 | — |
| Catalyst | Zinc | HCID 23994 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 58237933 | HCID 58237933 | 53% |
Reaction Steps
To a stirred suspension of 3-chloro-1-phenylpropan-1-one (10 g, 0.059 mol) and active Zinc power (19 g, 0.295 mol) in THF (200 mL) was added iodine (9 g, 0.035 mol), then ethyl bromoacetate (20 g, 0.118 mol) was added dropwise at rt. The formed mixture was heated to reflux for 30 min. The reaction was quenched with water, and the mixture was filtered through a celite pad. The filtrate was extracted with EtOAc. The organic phase was dried over Na2SO4, and concentrated to give the crude product, which was purified by column chromatography to afford ethyl 5-chloro-3-hydroxy-3-phenylpentanoate (8.0 g, 53%). 1H NMR (CDCl3): δ=1.02 (t, 3H), 2.13-2.28 (m, 2H), 2.73 (d, 1H), 2.90 (d, 1H), 3.11 (1, 2H), 3.54 (m, 1H), 3.94 (q, 2H), 7.18 (m, 1H), 7.29 (m, 4H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08680281B2 |
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| Source dataset | uspto-grants-2014_03 |
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| ORD ID | ord-fc01b31a9f50442cad96f6827a1a1ff6 |
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| Source note | uspto-grants-2014_03 |
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