Nitroimidazoles.<b>IX</b>. Synthesis of 2-acetyl-1-methyl-5-nitroimidazole
作者:A. Shafiee、B. Pirouzzadeh、F. Ghasemian、K. Parang
DOI:10.1002/jhet.5570290461
日期:1992.7
ehyde (7) in high yield. Reaction of diazomethane with 7 afforded the title compound 1 in low yield. Treatment of ethyl acid malonate with two equivalents of isopropylmagnesium bromide in THF and subsequent addition to 1-methyl-5-nitroimidazole-2-carbonylimidazolide (12) yielded ethyl (1-methyl-5-nitroimidazole-2-carbonyl)acetate (10) in 70% yield. Hydrolysis and decarboxylation of compound 10 gave
2-羟基甲基-1-甲基-5-甲基咪唑的二氧化锰氧化反应(6 )以高收率得到1-甲基-5-硝基咪唑-2-甲醛(7)。重氮甲烷与7的反应以低收率得到标题化合物1。用两当量的异丙基溴化镁在THF中处理丙二酸乙酯,然后添加到1-甲基-5-硝基咪唑-2-羰基咪唑啉酯(12)中,生成(1-甲基-5-硝基咪唑-2-羰基)乙酸乙酯(10)收率达70%。化合物10的水解和脱羧得到所需化合物1,产率为97%。