Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 1-Naphthylamine | HCID 8640 | — |
| Reactant | Ethyl 2-bromopropionate | HCID 79040 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 13388950 | HCID 13388950 | 73% |
Reaction Steps
To a solution of 1-aminonaphthalene (1.43 g, 10 mmol) and triethylamine (1.5 mL, 10.8 mmol) in dimethylformamide (3.0 mL) at room temperature under nitrogen was added ethyl 2-bromopropionate (1.4 mL, 10.8 mmol). After stirring at 60° C. (bath temperature) 18 hrs, the mixture was partitioned between EtOAc-water. The organic phase was washed with water, 5% KHSO4, saturated NaHCO3 and saturated NaCl solutions, dried over anhydrous Na2SO4 and evaporated to a brown oil. Purification of the crude product by flash chromatography on silica gel eluting with Et2O-hexane (5:95) to give ethyl 2-(1-naphthylamino)propionate (1.726 g, 73%) as a white crystalline solid after trituration with cold hexane. TLC(Et2O-hexane; 2:3) Rf=0.43.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07157430B2 |
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| Source dataset | uspto-grants-2007_01 |
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| ORD ID | ord-167178216088422a8a8feffb1bf75522 |
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| Source note | uspto-grants-2007_01 |
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