Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 279496Generated: October 25, 2026

Thionyl Chloride → 7-(Benzyloxy)-4-chloro-6-methoxyquinazoline hydrochloride

https://huagongshe.com/reaction/279496

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant7-Benzyloxy-6-methoxy-3H-quinazolin-4-oneHCID 135404718—
SolventDimethylformamideHCID 6228—
Product7-(Benzyloxy)-4-chloro-6-methoxyquinazoline hydrochlorideHCID 22030836—

Reaction Steps

A mixture of 7-benzyloxy-6-methoxy-3,4-dihydroquinazolin-4-one (2.82 g, 0.01 mol), thionyl chloride (40 ml) and DMF (0.28 ml) was stirred and heated at reflux for 1 hour. The mixture was evaporated, the residue was taken up in toluene and evaporated to dryness to give 7-benzyloxy-4-chloro-6-methoxyquinazoline hydrochloride (3.45 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06362336B1
Source datasetuspto-grants-2002_03
ORD IDord-5b5564b2a6e2480080f50d605d1ecf66
Source noteuspto-grants-2002_03