电子诱导的变化,使得烯变成六个成员的循环烯
Sudipta Roy1, Kartik Chandra Mondal, Lennard Krause
1Institut für Anorganische Chemie, Georg-August-Universität , Tammannstraße 4, 37077 Göttingen, Germany.
Journal of the American Chemical Society
|November 11, 2014
概括
金属激活含有的锡龙分子,使其能够与C-H键进行选择性反应. 这通过基离子中间体形成循环烯,由EPR光谱学证实.
科学领域:
- 有机化学 有机化学
- 低价值化合物 低价值化合物
- 碳烯化学 碳烯化学
背景情况:
- 锡拉二碳 (silylones) 具有位于零氧化状态的原子,由两个碳联体稳定.
- 最近的实验和理论电荷密度研究证实了石的电子结构.
- 在惰性条件下,锡龙具有高达195°C的稳定性.
研究的目的:
- 为了研究silylones与金属的反应性.
- 为了探索龙中C:Si:C脊柱的激活.
- 开发一种原子经济方法来合成循环烯.
主要方法:
- 锡隆与金属 (33mol%) 的二氧化的反应.
- 使用光谱技术对反应产品进行表征.
- 循环电压测量用于研究反应机制.
- 电子磁共振 (EPR) 谱学用于识别激素中间体.
主要成果:
- 金属触发了龙骨干的激活.
- 发生了一种具有三级C-H键的选择性反应.
- 形成一个六个成员的循环烯与一个三坐标的原子.
- 循环电压测量和EPR光谱学证实了龙基离子中间体的形成.
结论:
- 锡龙可以被金属激活,以实现C-H键的功能.
- 反应通过基离子离子路径进行.
- 这项研究提出了一条原子经济路径,以循环烯.
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