Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ammonium Acetate | HCID 517165 | — |
| Reactant | 5-[4-(methylsulfonyl)phenyl]-1-(pyridin-2-yl)-6-(tetrahydro-2H-pyran-4-yl)hexane-1,4-dione | HCID 59331326 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 59331433 | HCID 59331433 | 86% |
Reaction Steps
To a solution of 5-[4-(methylsulfonyl)phenyl]-1-(pyridin-2-yl)-6-(tetrahydro-2H-pyran-4-yl)hexane-1,4-dione (525 mg) in acetic acid (6 mL) was added ammonium acetate (1.50 g), and the mixture was stirred at 110° C. for 45 min. After cooling to room temperature, the reaction mixture was diluted with ethyl acetate and washed with water. The ethyl acetate layer was washed with saturated aqueous sodium hydrogen carbonate and saturated brine, dried (MgSO4) and concentrated. The residue was subjected to silica gel column chromatography, and the title compound (430 mg, yield 86%) was obtained as a colorless amorphous solid from a fraction eluted with ethyl acetate-hexane (2:1, volume ratio). MS: 411 (MH+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08318746B2 |
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| Source dataset | uspto-grants-2012_11 |
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| ORD ID | ord-b0f337be47054ae8a67bf89e467b113e |
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| Source note | uspto-grants-2012_11 |
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