应用化学 ›› 2019, Vol. 36 ›› Issue (6): 664-670.DOI: 10.11944/j.issn.1000-0518.2019.06.180338

• 研究论文 • 上一篇    下一篇

四丁基碘化铵/过硫酸钾体系促进硝基烯烃与磺酰肼脱硝磺酰化反应合成(E)-烯基砜

唐裕才ab*(),王萍a,冉书童a,陈飘a   

  1. a湖南文理学院化学与材料工程学院 湖南 常德 415000
    b洞庭湖生态经济区建设与发展湖南省协同创新中心 湖南 常德 415000
  • 收稿日期:2018-10-26 接受日期:2019-01-14 出版日期:2019-06-01 发布日期:2019-06-03
  • 通讯作者: 唐裕才
  • 基金资助:
    湖南文理学院博士科研启动资金(17BSQD32)湖南省十二五重点学科建设(应用化学)项目资助

Synthesis of (E)-β-Vinyl Sulfones by Metal-Free Tetrabutylammonium Iodide/Potassium Persulfate Mediated Radical Denitrative Sulfonylation of β-Nitrostyrenes with Sulfonylhydrazides

TANG Yucaiab*(),WANG Pinga,RAN Shutonga,CHEN Piaoa   

  1. aCollege of Chemistry and Materials Engineering
    bCollege of Chemistry and Materials Engineering,Hunan University of Arts and Science,Changde,Hunan 415000,China
  • Received:2018-10-26 Accepted:2019-01-14 Published:2019-06-01 Online:2019-06-03
  • Contact: TANG Yucai
  • Supported by:
    Supported by the Start-up Foundation for Doctors of Hunan University of Arts and Science(No.17BSQD32), the Construct Program of the Key Discipline in Hunan Province(Applied Chemistry)

摘要:

发展了一种硝基烯烃与磺酰肼脱硝磺酰化反应合成(E)-β-烯基砜。 以四丁基碘化铵(TBAI)/过硫酸钾(K2S2O8)为催化氧化体系,多种硝基苯乙烯衍生物与取代磺酰肼发生自由基加成/脱硝基反应,以中等到良好的收率获得各种(E)-烯基砜。 反应具有底物适用范围广、反应操作简单、无金属催化及中性反应条件等优点,为含β-烯基砜类化合物的合成提供了一条高效、简单、环境友好的新途径。

关键词: (E)-烯基砜;, 硝基烯烃, 磺酰肼, 脱硝/磺酰化, 自由基反应

Abstract:

A novel and efficient protocol towards (E)-β-vinyl sulfone derivatives by tetrabutylammonium Iodide(TBAI)/K2S2O8 mediated denitrative sulfonylation of readily prepared β-nitrostyrenes and economical sulfonylhydrazides was described. The corresponding (E)-β-vinyl sulfone compounds were obtained in moderate to good yields. Compared with reported methods, the present strategy features metal-free, acid and base-free.

Key words: (E)-vinyl sulfone;, β-nitrostyrenes;, sulfonylhydrazides, denitrative sulfonylation, radical reaction