反应详情

To a mixture of 2-nitroimidazole (8 g, 70 mmol) and dry K2CO3 (9.7 g, 70 mmol) in acetone (100 mL) was added ethyl bromoacetate (11.6 g, 70 mmol). The suspension was stirred under N2 atmosphere for 48 h. TLC (silica gel, 40% hexane-ethyl acetate) showed a single UV-visible spot with Rf =0.55. The suspension was filtered and solid was washed with acetone (3×50 mL). The filtrate and the washings were combined and evaporated on a rotary evaporator to afford a thick yellow oil. Yield: 13.9 (99%). MS: 217 (M+NH4)+, 200 (M+H)+.

1. filtrationThe suspension was filtered
2. washsolid was washed with acetone (3×50 mL)
3. customevaporated on a rotary evaporator
4. customto afford a thick yellow oil