Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Citric Acid | HCID 311 | — |
| Reactant | 2-Methoxyaniline | HCID 7000 | — |
| Reactant | Sodium triacetoxyborohydride | HCID 5049666 | — |
| Reactant | tert-Butyl (2-oxoethyl)phenylcarbamate | HCID 15168496 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Solvent | Ethyl Acetate | HCID 8857 | — |
| Product | HCID 58778279 | HCID 58778279 | 51% |
Reaction Steps
Boc-phenylglycinal (0.74 g, 3.1 mmol) and 2-methoxyaniline (0.40 g, 3.3 mmol) were combined in dichloromethane and sodium triacetoxyborohydride (0.80 g, 3.8 mmol) was added as a solid. The reaction mixture was stirred at room temperature for 4 hours, diluted with 10% citric acid and ethyl acetate, and the organic layer was then washed with saturated sodium bicarbonate, washed with brine, dried over sodium sulfate and concentrated to an oil, which was purified by column chromatography on silica (0 to 30% EtOAc/hexanes) to give a white foam, 0.54 g, 1.6 mmol, 51% yield. 1H NMR (500 MHz, CDCl3) δ 7.31–7.21 (m, 5H), 6.78 (m, 1H), 6.68 (m, 1H), 6.60 (m, 2H), 5.04 (br s, 1H), 4.89 (br s, 1H), 4.32 (br s, 1H), 3.71 (s, 3H), 3.39 (m, 2H), 1.35 (s, 9H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07157476B2 |
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| Source dataset | uspto-grants-2007_01 |
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| ORD ID | ord-de191283b34c40fe8d9d0a8d31aeb777 |
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| Source note | uspto-grants-2007_01 |
|---|