Formylnitroenamines: useful building blocks for nitrated pyridones and aminopyridines with functional groups
作者:Yumi Nakaike、Daisuke Hayashi、Nagatoshi Nishiwaki、Yoshito Tobe、Masahiro Ariga
DOI:10.1039/b815306j
日期:——
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。