高等学校化学学报

高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (7): 947.

• 论文 •    下一篇

杂元素冠醚的研究(Ⅵ)─7,11－二硒杂苯并－13－冠－4铂配合物的合成及其催化硅氢化性能

李卫平, 刘秀芳, 卢雪然, 徐汉生   

  1. 武汉大学化学系, 武汉, 430072
  • 收稿日期:1993-07-01 修回日期:1993-12-31 出版日期:1994-07-24 发布日期:1994-07-24
  • 通讯作者: 徐汉生.
  • 作者简介:李卫平,男,26岁,博士研究生.
  • 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(Ⅵ)─Synthesis of 7,11-Diselenabenzo -13-crown-4 Platinum Complex and Its Catalytic Property for Hydrosilylation of Olefins

LI Wei-Ping, LIU Xiu-Fang, LU Xue-Ran, XU Han-Sheng   

  1. Department of Chemistry, Wuhan University, Wuhan, 430072
  • Received:1993-07-01 Revised:1993-12-31 Online:1994-07-24 Published:1994-07-24

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摘要： 合成了7,11-二硒杂苯并-13-冠-4及其铂配合物,并从底物的性质、反应温度、催化剂用量以及化学气氛四个方面考察了该配合物对烯烃与三乙氧基硅烷的硅氢加成反应的催化特性。与单硒杂冠醚配合物相比,该配合物对某些烯烃的催化活性较高,但催化反应需要的温度也较高。

关键词: 二硒杂冠醚, 铂配合物, 合成, 硅氢化催化剂

Abstract: Under alkaline condition, 1, 2-diselenolane(1) was reduced by sodium borohydride into sodium 1, 3-propanediselenolate, then condensed with 1, 2-bis(2'-chloroethyloxy) benzene and diselenacrown ether, 2, 3-benzo-1, 4-dioxa-7, 11-diselenacyclotridecyl-2-ene(2)was obtained.The first diselenacrown ether platinum complex(3) was prepared by reacting compound(2) with potassium chloroplatinite, The influencing factors including the nature of substrate, the reaction temperature, the amount of the complex used and the reaction atmosphere on its catalytic activity for the hydrosilylation of olefins by triethoxysilanc were investigated.The experimental data indicated that diselenacrown ether platinum complex was an efficient catalyst for the hydrosilylation;as compared with monoselenacrown ether platinum complex, the former possessed higher catalytic activity for allyl phenyl ether and allyl glycidyl ether, but needed higher reaction temperature.

Key words: Diselenacrown ether, Platinum complex, Synthesis, Hydrosilylation catalyst

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