Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hexane | HCID 8058 | — |
| Reactant | Ethyl Acetate | HCID 8857 | — |
| Reactant | Calcium Chloride | HCID 5284359 | — |
| Reactant | HCID 66725952 | HCID 66725952 | — |
| Catalyst | Iron | HCID 23925 | — |
| Solvent | Ethanol | HCID 702 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 66726077 | HCID 66726077 | 74% |
Reaction Steps
To a solution of 2-[(2-methoxyethoxy)methyl]-5-[4-nitro-3-(tetrahydro-2H-pyran-4-yloxy)phenoxy]pyridine (11.5 g) in ethanol (100 mL) and water (25 mL) were added iron powder (8 g) and calcium chloride (0.3 g), and the mixture was stirred with heating under reflux for 4 hr. The reaction mixture was cooled, and insoluble material was filtered off through celite. Water was added to the filtrate, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over magnesium sulfate, filtered and concentrated under reduced pressure. The obtained crude product was subjected to silica gel column chromatography (ethyl acetate:hexane=0:100 to 50:50, volume ratio) to give the title compound (7.84 g, yield 74%) as an orange oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08557805B2 |
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| Source dataset | uspto-grants-2013_10 |
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| ORD ID | ord-bbd80228d75c44dda0a4e0bb031970a7 |
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| Source note | uspto-grants-2013_10 |
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