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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1838525Generated: November 1, 2026

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

https://huagongshe.com/reaction/1838525

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

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 to 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 (3.45 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06673803B2
Source datasetuspto-grants-2004_01
ORD IDord-16a3916e7f074a0fb88d357a8fb2f78d
Source noteuspto-grants-2004_01