Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Iodine | HCID 807 | — |
| Reactant | 2-Cyclohexen-1-one | HCID 13594 | — |
| Reactant | 3-Bromoanisole | HCID 16971 | — |
| Reactant | Magnesium | HCID 5462224 | — |
| Catalyst | copper(I) bromide | HCID 24593 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 12039786 | HCID 12039786 | 47.6% |
Reaction Steps
Grignard reagent was prepared from magnesium (2.8 g) and 3-bromoanisole (22.0 g) in tetrahydrofuran (50 ml) in the presence of iodine, and a catalytic amount of copper (I) bromide (CuBr, 0.83 g) was added thereto. A tetrahydrofuran (10 ml) solution containing 2-cyclohexen-1-one (9.6 g) was also added dropwise while stirring on ice. After stirring at room temperature for 3 hours, hydrochloric acid was added, and extraction was performed with ethyl acetate. After drying with anhydrous magnesium sulfate, the solvent was distilled off under reduced pressure to produce a light yellow oily substance which was then separated and purified by silica gel column chromatography (n-hexane:ethyl acetate=5:1) to give 9.7 g of 3-(3-methoxyphenyl)cyclohexanone (47.6% yield).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06069176 |
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| Source dataset | uspto-grants-2000_05 |
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| ORD ID | ord-9fcaa48c63bd47528ac6770364730b85 |
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| Source note | uspto-grants-2000_05 |
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