反应详情

温度

120 °C

244 mg of 2-bromo-4-fluorobenzaldehyde, 0.35 g of potassium carbonate, 4 μl of water and 98 mg of [1,1′-bis(diphenylphosphino)ferrocene]palladium(II) dichloride are added to a solution of 500 mg of [2-amino-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)quinazolin-4-yl]-(1,3-dihydroisoindol-2-yl)methanone in 12 ml of ethanol under argon. The mixture is heated at 120° C. for 4 h; then allowed to cool, during which a precipitate deposits. The precipitate is filtered off, taken up in 10 ml of ethyl acetate and washed 3 times with 10 ml of water each time. After drying over sodium sulfate, the mixture is filtered off and evaporated to dryness in vacuo; yield: 495 mg (91%) of 2-[2-amino-4-(isoindoline-2-carbonyl)quinazolin-6-yl]-4-fluorobenzaldehyde; HPLC retention time: 1.73 min;

1. temperatureto cool, during which a precipitate deposits
2. filtrationThe precipitate is filtered off
3. washwashed 3 times with 10 ml of water each time
4. dry with materialAfter drying over sodium sulfate
5. filtrationthe mixture is filtered off
6. customevaporated to dryness in vacuo