反应详情

温度

100 °C

324 mg of t-butyl nitrite was added to a mixture of 506 mg of 4-amino-2-(2-ethylsulfanylphenyl)-7-trifluoromethylquinazoline and 10 ml of DMF at 100° C., and the mixture was stirred at 100° C. for 45 minutes. Water was added to the cooled reaction mixture, and the mixture was extracted with t-butyl methyl ether. The organic layer was washed with water and dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure. The resulting residue was applied to a silica gel column chromatography to obtain 74 mg of 2-(2-ethylsulfanylphenyl)-7-trifluoromethylquinazoline (Compound of Present Invention 11).

1. extractionthe mixture was extracted with t-butyl methyl ether
2. washThe organic layer was washed with water
3. dry with materialdried over anhydrous magnesium sulfate
4. concentrationconcentrated under reduced pressure