反应 #1755508

反应方程式

4-[(4-ethylthiophenyl)methyl]-5-methyl-3-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyloxy)-1H-pyrazole

sodium methoxide

→

4-[(4-ethylthiophenyl)methyl]-3-(β-D-glucopyranosyloxy)-5-methyl-1H-pyrazole

收率 94.3%

溶剂

methanol

反应条件

后处理

1. 1
   浓缩The reaction mixture was concentrated under reduced pressure
2. 2
   其他the residue was purified by column chromatography on silica gel (eluent: dichloromethane/methanol=5/1)

实验过程

To a solution of 4-[(4-ethylthiophenyl)methyl]-5-methyl-3-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyloxy)-1H-pyrazole (1.3 g) in methanol (10 mL) was added sodium methoxide (28% methanol solution, 0.13 mL), and the mixture was stirred at room temperature for 1 hour. The reaction mixture was concentrated under reduced pressure, and the residue was purified by column chromatography on silica gel (eluent: dichloromethane/methanol=5/1) to give 4-[(4-ethylthiophenyl)methyl]-3-(β-D-glucopyranosyloxy)-5-methyl-1H-pyrazole (0.87 g).

来源