addition of dianionic cyano-aci-nitroacetate to α-chloro-α,β-unsaturated ketones followed by intramolecular nucleophilic substitution of the nitronate ion intermediate. In this process, the dianionic reagent serves as the safe synthetic equivalent of the explosive nitroacetonitrile. The 3-cyano group is sufficiently reactive toward ethanolysis and 1,3-dipolar cycloaddition with an azide to afford ethyl
一系列的5酰化3- cyanoisoxazoles被有效通过迈克尔加成的双阴离子合成
氰基ACI -nitroacetate到α
氯α,β不饱和酮,接着氮酸盐离子中间体的分子内亲核取代。在此过程中,双阴离子试剂可作为爆炸性
乙腈的安全合成当量。3-
氰基对
叠氮化物的
乙醇分解和1,3-偶极环加成反应性足够,分别得到
乙酯和
四唑。还构建了5-酰基和4-芳基之间的
吡啶环。这导致了
异恶唑并[5,4- c ]
喹啉衍
生物的形成。