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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 453991Generated: November 1, 2026

Dimethylformamide → 7-(Benzyloxy)-4-chloro-6-methoxyquinazoline

https://huagongshe.com/reaction/453991

Reaction equation

Participants

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

Reaction Steps

7-Benzyloxy-6-methoxy-3,4-dihydroquinazolin-4-one (20.3 g, 124 mmol), (prepared as described for the starting material in Example 1), was taken up in thionyl chloride (440 ml) and DMF (1.75 ml) then heated at reflux for 4 hours. The thionyl chloride was evaporated under vacuum and the residue azeotroped with toluene three times to give 7-benzyloxy-4-chloro-6-methoxyquinazoline.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08492560B2
Source datasetuspto-grants-2013_07
ORD IDord-6d03cd4653de4e6c89695f50a465c3a5
Source noteuspto-grants-2013_07