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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1639314Generated: November 3, 2026

Water → HCID 14458977, compound

https://huagongshe.com/reaction/1639314

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium hydrideHCID 24758—
Reactant4-Bromo-2-fluorobenzyl bromideHCID 2733660—
ReactantHCID 14459011HCID 14459011—
SolventDimethylformamideHCID 6228—
ProductHCID 14458977HCID 1445897792.5%

Reaction Steps

To a suspension of ethyl 2-(6,7-dichloro-1,2,3,4-tetrahydro-2,4-dioxoquinazolin-1-yl)acetate (2.0 g) in N,N-dimethylformamide (50 ml) was added sodium hydride (60% in mineral oil, 288 mg) at room temperature with stirring and the mixture was stirred at the same temperature for 1 hour. To this mixture was added 4-bromo-2-fluorobenzyl bromide (1.93 g) at room temperature with stirring and the mixture was stirred at the same temperature for 2 hours. The solvent was removed to give a residue, which was poured into water. The resulting precipitates were collected by filtration and washed with n-hexane to give ethyl 2-[3-(4-bromo-2-fluorobenzyl)-6,7-dichloro-1,2,3,4-tetrahydro-2,4-dioxoquinazolin-1-yl]acetate (2.94 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04883800
Source datasetuspto-grants-1989_11
ORD IDord-d014e4536d264497b9d63035179a6e24
Source noteuspto-grants-1989_11