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有机化学
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有机化学 ›› 1995, Vol. 15 ›› Issue (3): 312-317. 上一篇    下一篇

研究论文

二羰基[三-(三甲硅基)]环戊二烯基铁卤化物的合成及结构

孔垂华;徐善生;周秀中;王如骥;王宏根   

  1. 南开大学元素有机化学实验室;南开大学中心实验室
  • 发布日期:1995-06-25

Syntheses and structures of dicarbonyl tris(trimethylsilyl)- cyclopentadienyl iron halides

KONG CHUIHUA;XU SHANSHENG;ZHOU XIUZHONG;WANG RUJI;WANG HONGGEN   

  • Published:1995-06-25

三-(三甲硅基)环戊二烯与五羰基铁在二甲苯中回流6h, 反应停留在生成η^5-[ (Me~3Si)~3C~5H~2]Fe(CO)~2H(1) 的中间阶段, 这是由于茂环上有三个大位阻取代基(Me~3Si)的存在阻止了1进一步反应成双核Fe-Fe键化合物. 1分别与CHCl~3·NBS及I~2反应, 生成相应的铁卤化物, η^5-[1,2,4-(Me~3Si)~3C~5H~2]Fe(CO)~2X (X: Cl, 2; Br, 3; I, 4).测定了2 的晶体结构.

关键词: 合成, 晶体结构, 国家教委高等学校博士学科点专项科研基金, 三甲基硅烷类, 环戊二烯

The xylene solution of tris (trimethylsilyl) cyclopentadiene and Fe(CO)~5 was refluxed for 6h . The reaction was stopped at intermediate step of formation of the corresponding mononuclear iron hydride η-[ (Me~3SiC~5H~2] Fe(CO)~2H (1). 1 cannot proceed further to form the dinuclear (Fe-Fe) product. It is probably due to the steric effect of three silyl groups on Cp-ring which hindered the further progress of the reaction. 1 reacted respectively with CHCl~3, NBS and iodine to afford the corresponding iron halides η-[1,2,4- (Me~3SiC~5H~2) ] Fe(CO)~2X (X: Cl, 2; Br, 3; I, 4). The crystal structure of 2 was determined by X-ray crystallography.

Key words: SYNTHESIS, CRYSTAL STRUCTURE, CYCLOPENTADIENE, TRIMETHYLSILANES

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