由Cp*W(NO) 片段介导的环二烯的并行转化
Xing Jin1, Peter Legzdins, Miriam S A Buschhaus
1Department of Chemistry, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1.
Journal of the American Chemical Society
|May 12, 2005
概括
这项研究详细介绍了环烯中复合物的解,揭示了经历三种不同的反应的中间体. 这些反应包括C-H激活,化和新型的环烯分子合.
科学领域:
- 有机金属化学 有机金属化学
- 催化剂是一种催化剂.
- 反应机制 反应机制
背景情况:
- 有机金属复合物在催化和材料科学中至关重要.
- 了解低坐标金属中心与不和碳化合物的反应性是开发新合成方法的关键.
研究的目的:
- 在室温下研究Cp*W(NO) ((CH2CMe3) 2与环合的反应途径.
- 阐明中间有机金属复合物的形成及其随后的转化.
- 描述这些并行反应途径产生的产物.
主要方法:
- 在循环烯溶剂中化前体复合物.
- 中间16电子复合体的分离和表征,[Cp*W(NO)(eta2-环烯) ].
- 对中间体三种不同的反应途径的分析:C-H激活,化和环烯合.
- 对化和合途径产生的产品进行单晶X射线晶体分析.
主要成果:
- 通过解形成中间体[Cp*W(NO) ((eta2-cyclohexene) ].
- 对循环二烯三种并行转换的观察:C-H激活,与H2结合和合.
- 循环烯化和合产生的新型复合物的结构特征,包括一个独特的eta1,eta3-(cyclohexyl) 循环烯联体.
结论:
- 中间体[Cp*W(NO) ((eta2-cyclohexene) ]是一种多功能物种,能够与环合产生多种反应.
- 这项研究揭示了有机金属复合体的新反应途径,涉及C-H激活,化和连接器合.
- 结晶学数据提供了对产生的有机金属复合物的结构特征的关键见解.
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