Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1161402Generated: October 25, 2026

Hydrochloric Acid → 4-Bromo-2-(hydroxymethyl)-6-methoxyphenol

https://huagongshe.com/reaction/1161402

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTetrahydrofuranHCID 8028—
Reactant5-Bromo-2-hydroxy-3-methoxybenzaldehydeHCID 262238—
ReactantSodium borohydrideHCID 4311764—
SolventEthanolHCID 702—
Product4-Bromo-2-(hydroxymethyl)-6-methoxyphenolHCID 89409299.1%

Reaction Steps

To a solution of 50 g of 5-bromo-2-hydroxy-3-methoxybenzaldehyde in 200 ml of an ethanol:THF=1:1 mixed solvent there was added 16.4 g of sodium borohydride while cooling on ice. After stirring at room temperature for 2 hours, 1N hydrochloric acid was added to the reaction mixture while cooling on ice. The organic layer was washed with ethyl acetate and dried over anhydrous magnesium sulfate. The desiccating agent was filtered off, and the filtrate was concentrated under reduced pressure to give the title compound (50 g) as a crude product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07816522B2
Source datasetuspto-grants-2010_10
ORD IDord-f70b09cfff0e422789fe0e0e9bd0e158
Source noteuspto-grants-2010_10