反应详情

8 Milliliters of acetonitrile was added to 0.63 g of 4-[N-(4-nitrophenyl)amino]-4H-1,2,4-triazole, 0.82 g of 4-bromobenzyl bromide and 0.62 g of anhydrous potassium carbonate and the mixture was stirred for 3 hours at room temperature. The solvent was removed by distillation under reduced pressure, and water was added to the residue obtained, which was then extracted with chloroform. The chloroform layer separated was washed with water and dried over anhydrous magnesium sulfate, and the solvent was removed by distillation. The residue was purified by silica gel column chromatography to give crude crystals from the chloroform/methanol (100/1) eluate. The crude crystals were recrystallized from acetone to give 0.71 g of 4-[N-(4-bromobenzyl)-N-(4-nitrophenyl)amino]-4H-1,2,4-triazole.

1. customThe solvent was removed by distillation under reduced pressure, and water
2. additionwas added to the residue
3. customobtained
4. extractionwhich was then extracted with chloroform
5. customThe chloroform layer separated
6. washwas washed with water
7. dry with materialdried over anhydrous magnesium sulfate
8. customthe solvent was removed by distillation
9. customThe residue was purified by silica gel column chromatography
10. customto give crude crystals from the chloroform/methanol (100/1) eluate
11. customThe crude crystals were recrystallized from acetone