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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 5128Generated: October 29, 2026

Phosphorus oxychloride → HCID 15228889, compound

https://huagongshe.com/reaction/5128

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphorus oxychlorideHCID 24813—
Reactant2-Oxo-1,2-dihydroquinoline-3,4-dicarboxylic acidHCID 804596—
SolventChloroformHCID 6212—
ProductHCID 15228889HCID 15228889—

Reaction Steps

A mixture of 2(1H)-Oxo-quinoline-3,4-dicarboxylic acid (2 g), phosphorous oxychloride (4 g) and dry chloroform (30 mL) was heated at reflux for 2 h. The solvent and excess reagents are removed in vacuo and the residue was treated with ice water to afford Furo[3,4-c]quinoline-1,3,4(5H)-trione as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05243049
Source datasetuspto-grants-1993_09
ORD IDord-146b31ec172a43eb9907724661a2a7f5
Source noteuspto-grants-1993_09