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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1386276Generated: November 1, 2026

Hydrochloric Acid → HCID 135411164, compound

https://huagongshe.com/reaction/1386276

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-MethoxyethanolHCID 8019—
ReactantSodiumHCID 5360545—
Reactant7-Fluoroquinazolin-4(3H)-oneHCID 135398496—
SolventWaterHCID 962—
ProductHCID 135411164HCID 13541116458%

Reaction Steps

Sodium (400 mg, 17 mmol) was added carefully to 2-methoxyethanol (10 ml) and the mixture heated at reflux for 30 minutes. 7-Fluoro-3,4-dihydroquinazolin-4one (750 mg, 4.57 mmol) was added to the resulting solution and the mixture heated at reflux for 15 hours. The mixture was cooled and poured into water (250 ml). The mixture was acidified to pH4 with concentrated hydrochloric acid. The resulting solid product was collected by filtration, washed with water and then with ether, and dried under vacuum to give 7-(2-methoxyethoxy)-3,4-dihydroquinazolin-4-one (580 mg, 58%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06265411B1
Source datasetuspto-grants-2001_07
ORD IDord-16d74050dff143ffb655fcb5b04d5c0c
Source noteuspto-grants-2001_07