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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1448035Generated: October 31, 2026

Sodium Hydroxide → HCID 20301069, compound

https://huagongshe.com/reaction/1448035

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
Reactant11H-Pyrido(2,1-b)quinazoline-8-carboxylic acid, 2-methyl-11-oxo-HCID 3047246—
SolventWaterHCID 962—
ProductHCID 20301069HCID 20301069—

Reaction Steps

A solution of 10.0 g (39.4 mmol) of 2-methyl-11-oxo-11H-pyrido[2,1-b]quinazoline-8-carboxylic acid and 78.8 ml of 1 N. NaOH in 500 ml of H2O was heated at reflux for 16 hours. The reaction mixture was evaporated to give a white powder which was triturated with hot EtOH giving the analytical sample upon filtration and drying; yield, 8.25 g (66.5%) mp 348.5° dec.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04179509
Source datasetuspto-grants-1979_12
ORD IDord-a027283e5ab648a18a2611ecd81edec5
Source noteuspto-grants-1979_12