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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 634721Generated: October 29, 2026

Thionyl Chloride → HCID 21701573, compound

https://huagongshe.com/reaction/634721

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
ReactantHCID 135411164HCID 135411164—
SolventDimethylformamideHCID 6228—
ProductHCID 21701573HCID 2170157383%

Reaction Steps

A solution of 7-(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one (500 mg, 2.2 mmol) in thionyl chloride (15 ml) and DMF (0.1 ml) was heated at reflux for 3 hours. The volatiles were removed by evaporation to give 4-chloro-7-(2-methoxyethoxy)quinazoline hydrochloride as a cream solid (520 mg, 83%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06184225B2
Source datasetuspto-grants-2001_02
ORD IDord-a5938894659d41beab6a64d4f4ec3fd7
Source noteuspto-grants-2001_02