高等学校化学学报 ›› 1995, Vol. 16 ›› Issue (10): 1559.

• 论文 • 上一篇    下一篇

杂元素冠醚研究(Ⅺ)──邻苯二硒型硒杂冠醚的合成

李卫平, 吴军, 刘秀芳, 徐汉生   

  1. 武汉大学化学系, 武汉, 430072
  • 收稿日期:1994-12-13 修回日期:1995-04-12 出版日期:1995-10-24 发布日期:1995-10-24
  • 通讯作者: 徐汉生
  • 作者简介:李卫平,男,28岁,博士,讲师.
  • 基金资助:

    国家自然科学基金;国家教育委员会博士点基金

Studies on Heterocrown Ether(Ⅺ)──The Syntheses or o-Benzene Diselenium Type of Selenacrown Compounds

LI Wei-Ping, WU Jun, LIU Xiu-Fang, XU Han-Sheng   

  1. Department of Chemistry, Wuhan University, Wuhan, 430072
  • Received:1994-12-13 Revised:1995-04-12 Online:1995-10-24 Published:1995-10-24

摘要: 在碱性条件下,聚邻二硒代苯被硼氢化钾还原成双硒负离子后与二卤代物缩合关环,得到7个邻苯二硒型硒杂冠醚化合物,其结构经元素分析、MS、IR和1HNMR证实。

关键词: 冠醚, 硒杂冠醚, 聚邻二硒代苯

Abstract: The key to the syntheses of selenacrown ethers is the syntheses of selenium-con-taining intermediates, This paper described an improved method to prepare poly(o-diselenobenzene), and poly(o-diselenobenzene) was used as the intermediate for the syntheses of o-benzene diselenium type of selenacrown ether compounds: under an alkaline condition,poly(o-diselenobenzene) was reduced by potassium borohydride into o-benzenediselenolateanion, which condensed with dihalides, and seven selenacrown compounds were obtained.Besides[1+1] products,[2+2] products were also isolated. All the selenacrown compounds were identified by elemental analysis, MS,1HNMR and IR, and their syntheti methods and spectral characteristics were discussed.

Key words: Crown ether, Selenacrown ether, Poly(o-diselenobenzene)

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