Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | 3,5-Dichlorophenol | HCID 11571 | — |
| Reactant | Sodium Hydroxide | HCID 14798 | — |
| Reactant | (2R,3R)-(+)-3-PROPYLOXIRANEMETHANOL, 97% (94% EE/GLC) | HCID 11073386 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Solvent | Sodium chloride; water | HCID 57417360 | — |
| Product | HCID 59769753 | HCID 59769753 | 26% |
Reaction Steps
Add sodium hydroxide (1N, 9 mL) to a stirred solution of 3,5-dichlorophenol in THF (9 mL) followed by a solution of (R,R)-(3-propyl-oxiranyl)-methanol in THF (5 mL). Heat the reaction mixture at 75° C. overnight, cool to room temperature, add water, brine and dichloromethane, and separate the layers. The aqueous layer is extracted with dichloromethane, the combined organic extracts are washed successively with 1N sodium hydroxide and water, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. Analysis of the crude reaction mixture by 1H NMR reveals a ˜2:1 mixture of the C-3:C-1 adducts. Purification of the crude residue on silica gel eluting with 0-25% EtOAc/hexanes gives the major title compound (332 mg, 26%). 1H NMR (DMSO-d6): 0.86 (dd, 3H, J=4, 4 Hz), 1.21-1.48 (m, 2H), 1.52-1.72 (m, 2H), 3.28-3.45 (m, 2H), 3.60-3.67 (m, 2H), 4.37-4.44 (m, 1H), 4.69 (dd, 1H, J=6, 6 Hz), 4.88 (d, 1H, J=5 Hz), 7.01-7.10 (m, 3H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07417064B2 |
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| Source dataset | uspto-grants-2008_08 |
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| ORD ID | ord-f5c6ff974c5041ab892c980c12cc4f98 |
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| Source note | uspto-grants-2008_08 |
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