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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1029695Generated: October 25, 2026

3,4-Dimethoxystyrene → 4-Ethyl-1,2-dimethoxybenzene

https://huagongshe.com/reaction/1029695

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3,4-DimethoxystyreneHCID 61400—
ReactantHCID 178418361HCID 178418361—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product4-Ethyl-1,2-dimethoxybenzeneHCID 7999098.8%

Reaction Steps

In an atmospheric pressure hydrogenation equipment 10.0 g (60.9 mM) of 3,4-dimethoxystyrene, 0.5 g of palladium charcoal and 200 ml of methanol were charged and introduced with hydrogen. The reaction was continued until the absorption of hydrogen was terminated. Palladium charcoal was filtered off from the reaction mixture. Methanol was distilled off from the filtrate. The residue was distilled under vacuum to obtain 10.0 g (60.2 mM) of 4-ethylveratrole as a colorless transparent liquid having a boiling point of 84°-85° C./2 mmHg

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05102906
Source datasetuspto-grants-1992_04
ORD IDord-0b4020e1c0e34382bf467e544ef2337e
Source noteuspto-grants-1992_04