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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1940392Generated: November 1, 2026

Kojic Acid → 5-(benzyloxy)-2-(hydroxymethyl)-4H-pyran-4-one

https://huagongshe.com/reaction/1940392

Reaction equation

Participants

RoleNameHCIDCharge
ReactantKojic AcidHCID 3840—
ReactantBenzyl ChlorideHCID 7503—
ReactantPotassium CarbonateHCID 11430—
SolventDimethylformamideHCID 6228—
Product5-(benzyloxy)-2-(hydroxymethyl)-4H-pyran-4-oneHCID 901598—

Reaction Steps

To the solution of kojic acid (28 g) in DMF (200 ml) was added potassium carbonate (32 g), and the mixture was stirred at room temperature for 30 minutes. After benzyl chloride (25 g) was added, the mixture was further stirred for 60 minutes. The solvent was evaporated. The residue was then extracted acetate, was acetate, washed with water and dried. After the solvent was evaporated, the residue was crystallized from ethyl acetate to give 5-benzyloxy-2-hydroxymethyl-4-oxo-4H-pyran (34.6

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05698692
Source datasetuspto-grants-1997_12
ORD IDord-5b60351acebe4c80ba091cfe88af2cf9
Source noteuspto-grants-1997_12