HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1099372Generated: October 30, 2026
Bromine → 2-Bromo-4-methoxy-5-methyl-indan-1-one
https://huagongshe.com/reaction/1099372
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Bromine | HCID 24408 | — |
| Reactant | Sodium Bicarbonate | HCID 516892 | — |
| Reactant | 4-Methoxy-5-methyl-indan-1-one | HCID 55297325 | — |
| Solvent | Acetic Acid | HCID 176 | — |
| Solvent | Hydrogen Bromide | HCID 260 | — |
| Product | 2-Bromo-4-methoxy-5-methyl-indan-1-one | HCID 66812711 | 44.2% |
Reaction Steps
To a stirred solution of 4-Methoxy-5-methyl-indan-1-one (5.0 gm, 0.0284 mole) in Acetic acid (65 ml) and Hydrobromic acid (1 ml), a solution of Bromine (1.47 ml, 0.0284 mole) in 5 ml Acetic acid was added at 10-20° C. The reaction mixture was stirred at 20-25° C. for an hour. Then it was poured into saturated solution of Sodium bicarbonate and extracted with Diethyl ether (3×100 ml). The organic layer was dried over Sodium sulphate, distilled under vacuum to give crude product which was purified over column chromatography using Ethyl acetate:Hexane (5:95) as a mobile phase. The collected fractions were distilled to give 3.2 gm of desired product as a viscous oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08143424B2 |
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| Source dataset | uspto-grants-2012_03 |
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| ORD ID | ord-2ca390011412433cafd18cc4fdc18ff4 |
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| Source note | uspto-grants-2012_03 |
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