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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

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
ReactantSodium BicarbonateHCID 516892—
Reactant4-Methoxy-5-methyl-indan-1-oneHCID 55297325—
SolventAcetic AcidHCID 176—
SolventHydrogen BromideHCID 260—
Product2-Bromo-4-methoxy-5-methyl-indan-1-oneHCID 6681271144.2%

Reaction Conditions

Temperature22.5 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08143424B2
Source datasetuspto-grants-2012_03
ORD IDord-2ca390011412433cafd18cc4fdc18ff4
Source noteuspto-grants-2012_03