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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1296076Generated: October 30, 2026

2-Hydroxy-4-Methoxybenzaldehyde → 5-Methoxy-2-methylphenol

https://huagongshe.com/reaction/1296076

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Hydroxy-4-MethoxybenzaldehydeHCID 69600—
ReactantAmmonium formateHCID 2723923—
CatalystPalladiumHCID 23938—
SolventAcetic AcidHCID 176—
Product5-Methoxy-2-methylphenolHCID 10953582—

Reaction Conditions

Temperature110 °C

Reaction Steps

2-Hydroxy-4-methoxy-benzaldehyde (3 g, 19.7 mmol), ammonium formate (6.2 g, 99 mmol) and palladium/carbon (900 mg @ 10%) were added to 26 ml glacial acetic acid and heated at 110° C. for 1 h. The reaction was cooled, filtered, and diluted with water (100 ml). The crude product was extracted with chloroform (3×50 ml), washed with water, brine, and dried over anhydrous sodium sulfate. The resulting solution was concentrated and used for the next step without further purification. MS m/z 139 (M+1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07244763B2
Source datasetuspto-grants-2007_07
ORD IDord-ecee7672379342faafef2754ed37c86b
Source noteuspto-grants-2007_07