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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 14972Generated: October 26, 2026

Hydrochloric Acid → (3-Bromo-4-methylphenyl)methanol

https://huagongshe.com/reaction/14972

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiethyl EtherHCID 3283—
ReactantEthyl 3-bromo-4-methylbenzoateHCID 14945865—
ReactantAluminium lithium hydrideHCID 21226445—
SolventTetrahydrofuranHCID 8028—
Product(3-Bromo-4-methylphenyl)methanolHCID 1294738190%

Reaction Conditions

Temperature0 °C

Reaction Steps

Ethyl 3-bromo-4-methylbenzoate was reduced follows: 2 equivalents lithium aluminium hydride (LAH) in THF was cooled to 0° C. Ethyl 3-bromo-4-methylbenzoate in anhydrous THF (10 mL) was added slowly to the cooled solution of LAH over 10 minutes, while stirring. The mixture was stirred at room temperature for 1 hour. The reaction was cooled to 0° C. and poured into ether (100 mL). The mixture was acidified by adding 1N HCl (aqueous) dropwise over 10 minutes. Separate fractions and wash aqueous phase with ether (50 mL). The fractions were combined and dried over magnesium sulfate. Solvent removal left a clear oil. The yield was 90%. 1H NMR (Varian 300 MHz, CDCl3, shifts relative to the solvent peak at 7.24 ppm) δ 7.5 (s, 1H) 7.2 (d, 1H) 7.1 (d, 1H), 4.6 (s, 2H) 2.3 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07732444B2
Source datasetuspto-grants-2010_06
ORD IDord-03c3dc8dddf7458c8f6b03aa9367ac2d
Source noteuspto-grants-2010_06