Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1871263Generated: October 26, 2026

Water → 6,7-Dimethoxy-4-(1phenylcyclopropyl)-quinazoline

https://huagongshe.com/reaction/1871263

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantCyclopropylbenzeneHCID 70112—
ReactantLithium diisopropylamideHCID 2724682—
Reactant4-Chloro-6,7-dimethoxyquinazolineHCID 2769364—
SolventTetrahydrofuranHCID 8028—
SolventEthyl AcetateHCID 8857—
Product6,7-Dimethoxy-4-(1phenylcyclopropyl)-quinazolineHCID 988299313.4%

Reaction Conditions

Temperature0 °C

Reaction Steps

A solution of 2.4 grams of phenylcyclopropane in 20 ml of tetrahydrofuran was added with 20 ml of 1M lithium diisopropylamide in tetrahydrofuran at 0° C. The mixture was stirred at 0° C. for 30 minutes and room temperature for 20 minutes. This was then added with 3.0 grams of 4-chloro-6,7-dimethoxyquinazoline in 20 ml of tetrahydrofuran. The mixture was then stirred at room temperature overnight, poured into a mixture of cold water and ethyl acetate. The ethyl acetate layer was washed with brine, dried over sodium sulfate, filtered and concentrated. The crude was then purified on a silica gel column with dichloromethane and methanol as the solvent to provided 550 mg of 6,7-dimethoxy-4-(1phenylcyclopropyl)-quinazoline.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06103728
Source datasetuspto-grants-2000_08
ORD IDord-6b79703d080846739088e9b0b87de7d7
Source noteuspto-grants-2000_08