高等学校化学学报

高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (10): 1801.

• 论文 • 上一篇    下一篇

四甲基二硅桥连二(1-苯基环己基环戊二烯基)四羰基二铁的合成、结构及热重排反应研究

孙秀丽1, 王佰全1, 徐善生1, 周秀中1, 翁林红2   

  1. 1. 南开大学化学系, 元素有机化学国家重点实验室, 天津 300071;
    2. 复旦大学化学系, 上海 200433
  • 收稿日期:2002-08-30 出版日期:2003-10-24 发布日期:2003-10-24
  • 通讯作者: 王佰全(1968年出生),男,博士,教授,博士生导师,从事金属有机化学研究.
  • 基金资助:

    国家自然科学基金(批准号:29972023,20202004);高等学校博士学科点专项科研基金(批准号:2000005504);教育部留学回国人员科研启动基金(批准号:2001-345)资助

The Synthesis, Structure and Thermal Rearrangement Reaction of Tetramethyldisilane-bridged Bis(1-phenylcyclohexylcyclopentadienyl)tetracarbonyl Diiron

SUN Xiu-Li1, WANG Bai-Quan1, XU Shan-Sheng1, ZHOU Xiu-Zhong1, WENG Lin-Hong2   

  1. 1. State Key Laboratory of Elemento-Organic Chemistry, Department of Chemistry, Nankai University, Tianjin 300071, China;
    2. Department of Chemistry, Fudan University, Shanghai 200433, China
  • Received:2002-08-30 Online:2003-10-24 Published:2003-10-24

PDF (PC)

被引次数

4

摘要： 1,2-二(1-苯基环己基环戊二烯基)四甲基二硅烷与Fe(CO)5在二甲苯中加热回流生成二铁化合物(Me2SiSiMe2)[(1-Ph-c-C6H10C5H3)Fe(CO)]2(μ-CO)2(2).通过柱层析分离到化合物2的顺反异构体2c和2t,并分别进行热重排反应,发现顺式底物2c重排生成反式重排产物[Me2Si(c-C6H10PhC5H3)Fe(CO)2]2(3t),而反式底物2t重排则生成顺式重排产物3c.这表明重排反应是立体专一性的.通过X射线衍射分析测定了化合物2c和3t的晶体结构.

关键词: 热重排, 环戊二烯基, 立体专一性, 晶体结构

Abstract: The reaction of 1,2-bis(1-phenylcyclohexylcyclopentadineyl)tetramethyldisilane with Fe(CO)5in refluxing xylene afforded the diiron complex(Me2SiSiMe2)[(1-Ph-c-C6H10C5H3)Fe·(CO)]2(μ-CO)2(2), existing as a mixture of cis and trans isomers(2c and 2t), which were separated by column chromatography.When the two isomers were heated in refluxing xylene, the cis substrate(2c) rearranged to the trans product[Me2Si(1-Ph-c-C6H10C5H3)Fe(CO)2]2(3t), while the trans substrate(2t) yielded the cis product(3c), respectively.This indicates that the rearrangement reaction is stereospecific.The molecular structures of compound 3c and 4t were determined by X-ray diffraction analysis.

Key words: Thermal rearrangement, Cyclopentadienyl, Stereospecificity, Crystal structure

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