摘要/Abstract

各种杂环骨架广泛存在于天然产物、药物分子及有机材料中，它们的合成方法也多种多样，其中1，3-偶极环加成反应是构建杂环重要的一类方法.2005年之前，有机化学家们将精力主要集中在1，3-偶极子的[3+2]环加成反应，构建五元杂环；随着研究的深入，逐渐将注意力转向[3+3]、[3+4]、[3+5]及[3+6]等环加成，构建六元、七元、八元及桥杂环等.关于1，3-偶极环加成反应的综述已有很多，但它们讨论的重点是[3+2]环加成.到目前为止，还没有专门的综述来探讨其它环加成反应的概况及其应用前景.因此，对各种1，3-偶极子的[3+n]（n≥3）环加成反应进行详细的综述及评论，并对其领域提出展望.
关键词: 1,3-偶极环加成, 硝酮, 亚甲胺叶立德, 偶氮次甲基亚胺, 氰基亚胺, 氰基氧化物, 氰基叶立德
Versatile heterocyclic skeletons extensively exist in structures of natural products, drug molecules and organic materials, and have been synthesized through various strategies reported in literatures. Among them, the 1,3-dipolar cycloaddition is the most impressive class to build the related heterocycles. In the past, organic chemists generally employed[3+2] cycloaddition of 1,3-dipoles to assemble five-membered rings. As modern chemistry developes, researchers further turn their attention to the[3+3],[3+4],[3+5] and[3+6] cycloadditions, to construct six-, seven-, eight- and bridge-heterocyclic compounds. At present, review articles with topics on 1,3-dipolar cycloaddition mainly focus on[3+2] cycloaddition. Herein, A topic on[3+n] (n ≥ 3) cycloaddition of 1,3-dipoles, with comments on the developed methodologies is present and the outlook in this field is proposed.
Key words: 1,3-diploar cycloaddtion, nitrone, azomethine ylide, azomethine imine, nitrile imine, nitrile oxide, nitrile ylide


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