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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1667508Generated: October 25, 2026

Hydrochloric Acid → (3,5-Dibromo-4-methylphenyl)methanol

https://huagongshe.com/reaction/1667508

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethyl 3,5-dibromo-4-methylbenzoateHCID 624016—
ReactantSodium borohydrideHCID 4311764—
SolventEthanolHCID 702—
Product(3,5-Dibromo-4-methylphenyl)methanolHCID 6015632572.9%

Reaction Steps

A mixture of methyl 3,5-dibromo-4-methylbenzoate (15 g, 48.706 mmol), NaBH4 (5.53 g, 146.18 mmol) and absolute ethanol (175 mL) was heated to reflux for 4 h. The mixture was cooled, followed by acidification with 2N HCl. The solids were filtered through celite and rinsed with EtOAc. The filtrate was poured onto water and extracted. The organic layer was washed with brine and dried (Na2SO4). Chromatography (Hexanes/EtOAc) afforded (3,5-dibromo-4-methyl-phenyl)-methanol (9.94 g) as a white solid. 1H NMR (400 MHz, d6-DMSO) δ: 2.48 (s, 3H), 4.45 (d, 2H), 5.38 (t, 1H), 7.57 (s, 2H) ppm.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08044041B2
Source datasetuspto-grants-2011_10
ORD IDord-4f30819e3f114251b81fcbc8592ced18
Source noteuspto-grants-2011_10