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

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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.

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