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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1785152Generated: October 30, 2026

Potassium Carbonate → HCID 85912885, compound

https://huagongshe.com/reaction/1785152

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1-Bromo-4-chlorobutaneHCID 81364—
Reactant4-Chloro-6-methoxyquinazolin-7-olHCID 135742251—
SolventDimethylformamideHCID 6228—
ProductHCID 85912885HCID 8591288547%

Reaction Steps

A suspension of 4-chloro-6-methoxyquinazolin-7-ol (0.6 g, 2.86 mmol), 1 bromo 4 chlorobutane (0.63 g, 3.7 mmol), potassium carbonate (1.19 g, 8.6 mmol) and dimethylformamide (10 ml) were heated to 95 C for 1.5 hours. The excess potassium carbonate was filtered off and the reaction evaporated under reduced pressure. The residue was purified by flash chromatography on silica eluting with a mixture of 60-100% dichloromethane in hexane and 30-50% ethyl acetate in hexane to give 4-chloro-7-(4-chlorobutoxy)-6-methoxyquinazoline as a solid (0.4 g, 47%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07504408B2
Source datasetuspto-grants-2009_03
ORD IDord-8ad3d9a80e0243b48b38504a2db8568c
Source noteuspto-grants-2009_03