Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 2-Bromoethanol | HCID 10898 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | 4-(Diethylamino)-2-hydroxybenzaldehyde | HCID 87293 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 85858301 | HCID 85858301 | 46.1% |
Reaction Steps
To a solution of 4-diethylamino-2-hydroxybenzaldehyde (1.00 g, 5.17 mmol) in 10 mL of dry N,N-dimethylformamide was added sodium hydride (250 mg, 55%, 5.7 mmol) under nitrogen at 0° C. After the reaction mixture was stirred at room temperature for 30 min, 2-bromoethanol (1.1 mL, 15 mmol) was added with additional stirring at 50° C. overnight. After quench with NH4Cl aqueous solution at 0° C., the solution was extracted with ethyl acetate three times. The extracts were washed with saturated NaHCO3 aqueous solution, brine, and dried over MgSO4. After filtration, the filtrate was concentrated in vacuo, and the residue was purified by silica gel column chromatography (hexane/ethyl acetate=75/25 to 25/75) to obtain the title compound as a brown gum (566 mg, 46%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08962674B2 |
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| Source dataset | uspto-grants-2015_02 |
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| ORD ID | ord-02896a1b0a3c4392be1c563b661e4b5a |
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| Source note | uspto-grants-2015_02 |
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