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DOI: https://doi.org/10.6023/cjoc202606002

研究论文

氮杂环卡宾（NHC）和1,2-环丁烯二酮协同参与的开环重建反应

  • 王晓梅 ,
  • 李运涛 ,
  • 李师伍 ,
  • 李少川 ,
  • 赵志飞
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  • a石河子大学化学化工学院/化工绿色过程省部共建国家重点实验室培育基地 新疆石河子 832000;
    b绿色碳化学安徽省重点实验室,阜阳师范大学化学与材料工程学院,安徽省阜阳市,236037,中国
†共同第一作者

收稿日期: 2026-06-03

  修回日期: 2026-07-13

  网络出版日期: 2026-08-28

基金资助

新疆维吾尔自治区“天池英才”青年博士项目、国家自然科学基金项目(C类,22501050)、安徽省教育厅项目 (2024AH051457)、阜阳师范大学科研启动经费 (2023KYQD0021)、阜阳师范大学校级人才项目 (rcxm202502)和化学类产学研合作项目 (HX2025146000).

收起

Cooperative Ring-Opening Reconstruction Reaction of N-Heterocyclic Carbenes with 1,2-Cyclobutenedione

  • Wang Xiaomei ,
  • Li Yuntao ,
  • Li Shiwu ,
  • Li Shaochuan ,
  • Zhao Zhifei
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  • a School School of Chemistry and Chemical Engineering, Shihezi University/State Key Laboratory Incubation Base for Green Processing of Chemical Engineering Shihezi, Xinjiang 832000;
    b Anhui Provincial Key Laboratory of Green Carbon Chemistry, School of Chemistry & Materials Engineering, Fuyang Normal University, Fuyang, 236037, PR China
†The authors contributed equally to this work.

Received date: 2026-06-03

  Revised date: 2026-07-13

  Online published: 2026-08-28

Supported by

Tianchi Talent Project of Xinjiang Uygur Autonomous Region, National Natural Science Foundation of Chian (22501050), Anhui Provincial Department of Education Project (2024AH051457), Start-up funds from Fuyang Normal University (2023KYQD0021), University-Level Talent project from Fuyang Normal University (rcxm202502) and Chemistry industry-university-research project (HX2025146000).

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摘要

我们实现了氮杂环卡宾(NHC)与1,2-环丁烯二酮的开环重建反应,通过改变氮杂环卡宾催化剂的类型,我们分别得到了碳插入的1,3-环戊二酮衍生物以及高氧化态和高活性的1,2,3-环丁三酮衍生物以及获得目标单晶结构,同时我们也捕获并得到其重要中间体的单晶. 该反应获得了中等到优异的产率 (45%-98%). 根据文献和单晶衍射分析显示两种产物经历了完全不同的反应历程。此外,反应还具有反应条件温和, 操作简便的优点,并且克级放大实验与产物衍生转化均可顺利实现.

关键词： 氮杂环卡宾; 1,2-环丁烯二酮; 碳插入; 1,3-环戊二酮; 1,2,3-环丁三酮

本文引用格式

王晓梅 , 李运涛 , 李师伍 , 李少川 , 赵志飞 . 氮杂环卡宾（NHC）和1,2-环丁烯二酮协同参与的开环重建反应[J]. 有机化学, 0 : 0 . DOI: 10.6023/cjoc202606002

Abstract

We have achieved the ring-opening and reconstruction reaction between N-heterocyclic carbene catalysts and 1,2-cyclobutenediones. By varying the type of N-heterocyclic carbene catalysts, we selectively obtained carbon-inserted 1,3-cyclopentanedione derivatives, as well as 1,2,3-cyclobutantrione derivatives featuring high oxidation states and high reactivity. Meanwhile, we isolated single-crystals of the key reaction intermediates for 1,2,3-cyclobutanetrione. This reaction afforded moderate to excellent yields (45%-98%). Combined with literature reports and single-crystal X-ray diffraction analysis, the two products were confirmed to proceed through completely distinct reaction pathways. Furthermore, this synthetic protocol features mild reaction conditions and simple operation, and the gram-scale scale-up experiment and derivatization transformations could also be smoothly implemented.

Key words： N-heterocyclic carbene; 1,2-cyclobutenedione; carbon-inserted; 1,3-cyclopentanedione; 1,2,3-cyclobutantrione

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