Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Iodide | HCID 5238 | — |
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 1-Piperazinecarboxaldehyde | HCID 82191 | — |
| Reactant | HCID 22718335 | HCID 22718335 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 22718343 | HCID 22718343 | — |
Reaction Steps
1-Formyl piperazine (2.8 g) and 2-(4-fluorophenoxy)propyl chloride (4.7 g) were dissolved in dimethylformamide (60 ml), and sodium iodide (3.2 g) and triethylamine (4.4 ml) were added thereto, and the mixture was stirred overnight at 50 to 70° C. The organic layer was partitioned by adding water and ethyl acetate, washed with brine, dried over sodium sulfate anhydrous, and evaporated. The residue was purified by Cromatorex NH silica gel column chromatography (ethyl acetate). The resulting yellow oil (12.3 g) was dissolved in methanol (20 ml), and 5N aqueous sodium hydroxide (10 ml) was added thereto and then stirred for 1 hour under reflux. The reaction mixture was evaporated, then the organic layer was partitioned by adding water and ethyl acetate, washed with brine, and dried over sodium sulfate anhydrous. The residue obtained by evaporation was purified by Cromatorex NH silica gel column chromatography (ethyl acetate/methanol system), whereby the title compound (2.2 g, 38%) was obtained as a pale yellow oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06737425B1 |
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| Source dataset | uspto-grants-2004_05 |
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| ORD ID | ord-b645f7ae931840939eb1e8b8ecaaf4d8 |
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| Source note | uspto-grants-2004_05 |
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