反应详情

A mixture of 3-acetyl-2-bromomethyl-4-(3,4-dimethoxyphenyl)-6,7-dimethoxyquinoline (1.5 g), 1-methyl-2-mercaptoimidazole (0.417 g), potassium carbonate (0.495 g) and N,N-dimethylformamide (20 ml) was stirred at room temperature for 3 hours. The reaction mixture was poured into water, and extracted with ethyl acetate. The ethyl acetate layer was washed with water, and dried over magnesium sulfate. Evaporation of the solvent gave 3-acetyl-4-(3,4-dimethoxy-phenyl)-6,7-dimethoxy-2-[(1-methylimidazol-2-yl)thiomethyl]-quinoline (1.1 g, 71%). This compound was recrystallized from ethanol to give colorless prisms, mp. 175°-176° C.

1. extractionextracted with ethyl acetate
2. washThe ethyl acetate layer was washed with water
3. dry with materialdried over magnesium sulfate
4. customEvaporation of the solvent