therefore, serve as C3N1 building blocks having a nitro group to afford nitropyridones and aminonitropyridines with a functional group at the 3-position. Upon treatment with malonic acid derivatives or β-keto esters, nitropyridones were obtained, whereas reactions with functionalized acetonitriles afford aminonitropyridines, via a formal transfer of an alkyl group from the ring nitrogen to the imino group
β-甲酰基-β-亚
硝胺1同时具有亲电甲酰基和亲核
氨基,因此,作为具有硝基的C 3 N 1结构单元,可以提供在3-位具有官能团的
硝基吡啶酮和
氨基
硝基吡啶。经治疗
丙二酸可以得到
硝基吡啶酮衍
生物或β-
酮酯,而与官能化
乙腈的反应则是通过烷基从环氮到亚
氨基的正式转移而得到
氨基
硝基吡啶。这些程序提供了制备具有硝基的杂环的实用方法。