高等学校化学学报

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端基炔烃的简单快速二聚反应

朱敏, 许惠英, 陈虹   

  1. 浙江树人大学生物环境学院, 杭州 310015
  • 收稿日期:2008-01-10 修回日期:1900-01-01 出版日期:2008-06-10 发布日期:2008-06-10
  • 通讯作者: 朱敏

Simple and Fast Dimerization of Terminal Alkynes

ZHU Min*, XU Hui-Ying, CHEN Hong   

  1. College of Biological and Environmental Sciences, Zhejiang Shuren University, Hangzhou 310015, China
  • Received:2008-01-10 Revised:1900-01-01 Online:2008-06-10 Published:2008-06-10
  • Contact: ZHU Min

摘要: 端基炔烃在无钯催化剂的条件下, 以乙腈为溶剂, 三乙胺为碱, 与氯化亚铜和二醋酸碘苯反应, 常温下短时间内得到高产率的二聚产物, 提供了一个简单快速合成共轭二炔烃的新方法. 比较了反应条件, 并提出了可能的反应机理.

关键词: 共轭二炔烃, 二聚反应, 二醋酸碘苯

Abstract: Diacetoxyiodo benzene(DIB) is an important and practically useful commercial available compound. In order to explore DIB useful scope as an environmentally more benign oxidizing reagent, a novel and efficient synthesis of diynes was studied in the absence of palladium catalysts. It was found that terminal alkynes were reacted with DIB, CuCl and Et3N in CH3CN at room temperature, diynes were prepared in good yields in a short time, which providing a simple method for the synthesis of diynes.

Key words: Conjugated diyne, Dimerization, Diacetoxyiodo benzene(DIB)

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