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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1785095Generated: October 30, 2026

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

https://huagongshe.com/reaction/1785095

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant7-Benzyloxy-6-methoxy-3H-quinazolin-4-oneHCID 135404718—
SolventDimethylformamideHCID 6228—
Product7-(Benzyloxy)-4-chloro-6-methoxyquinazolineHCID 10661998—

Reaction Steps

After repetition of the reaction so described, a mixture of 7-benzyloxy-6-methoxy-3,4-dihydroquinazolin-4-one (20.3 g), thionyl chloride (440 ml) and DMF (1.75 ml) was heated to reflux for4 hours. The thionyl chloride was evaporated under vacuum and the residue was azeotroped with toluene three times to give 7-benzyloxy-4-chloro-6-methoxyquinazoline.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07504408B2
Source datasetuspto-grants-2009_03
ORD IDord-d9975e79f132408fb3402d78e1cb5a69
Source noteuspto-grants-2009_03