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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 610385Generated: October 25, 2026

4-Pyridinecarboxaldehyde → 6-Methoxy-3-(4-pyridyl)methylene-4-chromanone

https://huagongshe.com/reaction/610385

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-PyridinecarboxaldehydeHCID 13389—
Reactant6-methoxy-3,4-dihydro-2H-1-benzopyran-4-oneHCID 4612168—
Product6-Methoxy-3-(4-pyridyl)methylene-4-chromanoneHCID 54062702—

Reaction Steps

By the method of Example 1, 6-methoxy-4-chromanone (26.7 g, 0.15 mol) and pyridine-4-carbaldehyde were converted to present title product, 13.5 g; m.p. 170-171.5° C.; IR (KBr) 1675, 1616, 1598, 1552 cm-1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05998451
Source datasetuspto-grants-1999_12
ORD IDord-2eb9c31c57e143eabed8d9137795ac13
Source noteuspto-grants-1999_12