Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Citric Acid | HCID 311 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | 2,5-Dibromopyridine | HCID 69353 | — |
| Reactant | 3-Tetrahydropyranyloxy-1-propanol | HCID 10855766 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 69590513 | HCID 69590513 | — |
Reaction Steps
To a solution of 3-tetrahydropyranyloxy-1-propanol (1.0 g, 6.25 mmol) in DMF (10.0 mL) was added NaH (0.17 g, 95%) and stirred at 0° C. After 30 minutes, 2,5 dibromopyridine (1.0 g, 4.22 mmol) was added and the mixture was stirred at room temperature for 2 hours. The mixture was then poured into 5% cold citric acid (10.0 mL) and extracted with EtOAc (3×15 mL). The combined organic extracts were washed with water (3×15 mL), dried (Na2SO4), and concentrated to dryness. The resulting material was purified by silica gel flash chromatography using 20% EtOAc in hexane containing 0.5% triethyl amine. The appropriate fractions (monitored by TLC in 30% EtOAc in hexane) were combined and concentrated to give the desired product (1.1 g) as a colorless syrup. 1H-NMR and mass spectral data were consistent with the structure.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06933304B2 |
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| Source dataset | uspto-grants-2005_08 |
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| ORD ID | ord-487b3c17856e43af9cfba77613ab90f5 |
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| Source note | uspto-grants-2005_08 |
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