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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1709313Generated: October 29, 2026

Pyridine → 6-(Diethylamino)-2-benzofurancarboxaldehyde

https://huagongshe.com/reaction/1709313

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantCyclopentanoneHCID 8452—
Reactant4-(Dicyanomethylene)-2,6-dimethyl-4H-pyranHCID 119915—
Reactant3-Cyano-4-phenyl-2-furanoneHCID 15165211—
Product6-(Diethylamino)-2-benzofurancarboxaldehydeHCID 14716710—

Reaction Steps

The new dyes of this invention are prepared by condensation of the new intermediates of Examples 1 and 2 in pyridine with an active methylene compound such as 3-cyano-4-phenyl-2-furanone, cyclopentanone, 4-dicyanomethylene-2,6-dimethyl-4H-pyran, 3-acetyl-7-(N,N-dialkylamino)coumarins and the like.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04948895
Source datasetuspto-grants-1990_08
ORD IDord-23dce8cf52d74c00bd2ee97b0094e9fe
Source noteuspto-grants-1990_08