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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1443498Generated: October 31, 2026

Sodium ethoxide → HCID 178467466, compound

https://huagongshe.com/reaction/1443498

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium ethoxideHCID 2723922—
Reactant2-chloro-7-methoxy-8-methyl-1H-quinazolin-4-oneHCID 178487752—
ProductHCID 178467466HCID 17846746696.6%

Reaction Steps

The quinazolinol (140) (530 mg, 2.36 mmol) was added in small portions to freshly prepared EtONa (740 mg of Na added in 20 mL EtOH). The resulting solution was heated to reflux and after 24 h, the reaction mixture was cooled down to room temperature and evaporated. The residue was re-dissolved in water (10 mL) and the pH of the resulting solution was adjusted to 5 with AcOH. The precipitate was collected by filtration, washed with ice-cooled water and dried to give the title compound (534 mg, 96.6%) as a white solid, m/z=235 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07659245B2
Source datasetuspto-grants-2010_02
ORD IDord-b0960885231f4f5da26cb26d835e2109
Source noteuspto-grants-2010_02