反应详情

温度

0 °C

Sodium hydride (0.02 g) was taken in dry DMF (5 ml) and a solution of tert-butyl 4-(5-phenyl-1H-1,2,3-triazol-4-yl)piperazine-1-carboxylate (0.015 g in 5 ml of DMF) was added slowly at 0° C. The reaction mixture was stirred for 30 min at 0° C. and methyl iodide (0.13 g) was added very slowly. The reaction mixture was allowed to stir over night at room temperature. The reaction mixture was quenched with cold water (5 ml) and extracted with ethyl acetate (3×40 ml). Evaporation of solvent under reduced pressure gave crude product, which, was purified by column chromatography using 60-120 silica gel methanol\dichloromethane (1:9) as eluent to afford tert-butyl 4-(2-methyl-5-phenyl-1H-1,2,3-triazol-4-yl)piperazine-1-carboxylate.

1. stirringto stir over night at room temperature
2. customThe reaction mixture was quenched with cold water (5 ml)
3. extractionextracted with ethyl acetate (3×40 ml)
4. customEvaporation of solvent under reduced pressure
5. customgave crude product, which
6. customwas purified by column chromatography