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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 495355Generated: October 27, 2026

Potassium Carbonate → 3-(4-chlorobutyl)-6,7-dimethoxy-4(3H)-quinazolinone

https://huagongshe.com/reaction/495355

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1-Chloro-4-iodobutaneHCID 82527—
Reactant4(1H)-QuinazolinoneHCID 135408753—
Reactant6,7-Dimethoxy-3H-quinazolin-4-oneHCID 135495016—
SolventDimethylformamideHCID 6228—
Product3-(4-chlorobutyl)-6,7-dimethoxy-4(3H)-quinazolinoneHCID 22326633—

Reaction Steps

3-(4-chlorobutyl)-6,7-dimethoxy-4(3H)-quinazolinone was prepared starting from 6,7-dimethoxy-4(3H)-quinazolinone (1.65 g, 8 mmol). The quinazolinone was combined with 1-chloro-4-iodobutane (1.08 mL, 8.8 mmol), an excess of potassium carbonate (10 g) and stirred in 30 mL DMF overnight. The salts were filtered off and the reaction mixture was dilluted with water. The solid that formed was collected via vacuum filtration, washed with water and dried, 1.55 g (65%); gray solid; m.p. 117° C., MS: 296.8 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06939870B2
Source datasetuspto-grants-2005_09
ORD IDord-885572fc49c84ca38abfb4c4530d2fd3
Source noteuspto-grants-2005_09