HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1255815Generated: November 1, 2026
Water → 1-(2-Amino-5-bromophenyl)ethan-1-one
https://huagongshe.com/reaction/1255815
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Sulfuric Acid | HCID 1118 | — |
| Reactant | 2'-Aminoacetophenone | HCID 11086 | — |
| Reactant | N-bromobutanimide | HCID 67184 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | 1-(2-Amino-5-bromophenyl)ethan-1-one | HCID 11074746 | 58.1% |
Reaction Steps
To a mixture of 1-(2-aminophenyl)ethanone (5.0 g, 0.037 mol) in dichloromethane (60 mL) was added NBS (7.3 g, 0.04 mol). The resulting mixture was cooled to 0° C. followed by the addition of H2SO4 (0.05 mL). It was allowed to warm to room temperature and stirred overnight. To the reaction mixture was added water and extracted with dichloromethane, dried over MgSO4. The crude product was purified by column chromatography eluted with ethyl acetate/hexanes to afford the titled compound (4.6 g, 58%) as a yellow solid. m.p 87-89° C. 1H NMR (400 MHz, CDCl3): δ 2.56 (s, 3H), 6.31 (s, 2H), 7.56 (d, J=8.8 Hz, 1H), 7.33 (dd, J=2.4 Hz, 1H), 7.80 (d, J=2.4 Hz, 1H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08461157B2 |
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| Source dataset | uspto-grants-2013_06 |
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| ORD ID | ord-8fc14d3d49be49d6af880c131944b13c |
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| Source note | uspto-grants-2013_06 |
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