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有机化学
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有机化学 ›› 2005, Vol. 25 ›› Issue (9): 1077-1083. 上一篇    下一篇

研究论文

芳醚树枝形聚合物的合成及分子内光敏异构化反应研究

陈金平1，韩永滨1，张鲁1，刘白宁1，杨国强*, b， 李嫕*,1   

  1. (1中国科学院理化技术研究所 北京 100101)
    (2中国科学院化学研究所光化学开放实验室 北京 100080)
  • 收稿日期:2004-12-22 修回日期:2005-03-28 发布日期:2005-08-24
  • 通讯作者: 杨国强

Synthesis of Poly(aryl ether) Dendrimers and Studies on the In-tramolecuar Photosensitization

CHEN Jin-Ping1,HAN Yong-Bin1,ZHANG Lu1,LIU Bai-Ning1
YANG Guo-Qiang*,2,LI Yi*,1   

  1. (1 Technical Institute of Physics and Chemistry, Chinese Academy Sciences, Beijing 100101)
    (2 Key Laboratory of Photochemistry, Institute of Chemistry, Chi-nese Academy of Sciences, Beijing 100080)
  • Received:2004-12-22 Revised:2005-03-28 Published:2005-08-24
  • Contact: YANG Guo-Qiang

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1143

被引次数

3

利用收敛法合成了一代到四代外围带有二苯酮、核心带有降冰片二烯的芳醚树枝形聚合物, 初步研究了这些化合物的分子内光敏异构化反应. 以波长大于350 nm的光选择激发外围的二苯酮官能团引起核心处降冰片二烯基团异构化为四环烷, 随着代数的增长, 光敏异构化反应的速率逐渐加快.

关键词: 芳醚树枝形聚合物, 二苯酮, 分子内光敏异构化反应, 降冰片二烯

A series of benzophenone (BP) and norbornadiene (NBD) labeled poly(aryl ether) dendrimers (Gn-NBD), generations 1～4, were synthesized. The intramolecular photosensitization was studied. Irradiation with ＞350 nm of a solution of Gn-NBD in degassed CH2Cl2 at room temperature resulted in a valence isomerization of the norbornadiene group to the quadricyclane group (Gn-QC). The observed rates of the isomerization became higher with the generation increase.

Key words: poly(aryl ether) dendrimer, norbornadiene, intramolecular photosensitization, benzophenone