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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1493574Generated: October 30, 2026

HCID 54691271, compound → HCID 11989638, compound

https://huagongshe.com/reaction/1493574

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 54691271HCID 54691271—
SolventHydrogen BromideHCID 260—
ProductHCID 11989638HCID 1198963882.8%

Reaction Steps

In 640 ml of 47% hydrobromic acid was suspended 8.0 g of 4-hydroxy-7-methoxy-3-(2-methoxyphenyl)-2quinolone, and the suspension was heated under reflux for 3-4 days. After cooling, the precipitates were collected by filtration, washed with water, and dried to obtain 5.6 g of 3-hydroxy-5H-benzofuro[3,2-c]quinolin-6-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05023261
Source datasetuspto-grants-1991_06
ORD IDord-a161cf8d366d456ab7ded4d793295a62
Source noteuspto-grants-1991_06