Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | 4-(4'-Hydroxyphenyl)-2-butanone | HCID 21648 | — |
| Reactant | Benzyltriphenylphosphonium bromide | HCID 2734970 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 67983058 | HCID 67983058 | 44% |
Reaction Steps
To a suspension of benzyltriphenylphosphonium bromide (10.9 g, 25.1 mmol, 1.2 equiv.) in THF (35 mL), was added potassium-t-amylat (1.7 M in toluene, 20 mL, 34.0 mmol, 1.7 equiv.) at 25° C. 4-(4-Hydroxyphenyl)butan-2-one (3.3 g, 20.1 mmol, 1.0 equiv.) in THF (5 mL) was added to the red suspension, and the mixture was stirred at 70° C. for 30 min. After addition of 20% aq. AcOH-solution (10 mL) at 25° C., the aqueous layer was diluted with hexanes (50 mL). The organic phase was washed with H2O (2×30 mL) and MeOH/H2O (8:2, 2×20 mL) and concentrated. The residue was purified by flash chromatography on SiO2 to yield 2.10 g (44%) of the title compound as a white solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09193935B2 |
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| Source dataset | uspto-grants-2015_11 |
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| ORD ID | ord-4af089b7f6c3466c8d6a1287e2e4f278 |
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| Source note | uspto-grants-2015_11 |
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