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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 229779Generated: October 29, 2026

7-(Diethylamino)-2-oxo-2H-chromene-3-carbaldehyde → 1-(5-carboxy-pentyl)-4-[(E)-2-(7-diethylamino-2-oxo-2H-chromen-3-yl)-vinyl]-6-sulfo-chinolinium betaine

https://huagongshe.com/reaction/229779

Reaction equation

Participants

RoleNameHCIDCharge
Reactant7-(Diethylamino)-2-oxo-2H-chromene-3-carbaldehydeHCID 143191—
Reactant1-(5-Carboxy-pentyl)-4-methyl-6-sulfonato-chinolinium betaineHCID 131727539—
SolventMethanol--water (1/1)HCID 22242641—
Product1-(5-carboxy-pentyl)-4-[(E)-2-(7-diethylamino-2-oxo-2H-chromen-3-yl)-vinyl]-6-sulfo-chinolinium betaineHCID 131727538—

Reaction Steps

0.2 mmol 7-diethylamino-2-oxo-2H-chromene-3-carbaldehyde and 0.2 mmol 1-(5-carboxy-pentyl)-4-methyl-6-sulfonato-chinolinium betaine are converted according to the general directions given above. Column chromatography: SiO2 (RP 18), eluent: methanol/water.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07563907B2
Source datasetuspto-grants-2009_07
ORD IDord-ef5b89c3f6384f20afb9e0e083ac7176
Source noteuspto-grants-2009_07