基的直接亚齐里丁化由一个阴离子 (盐) (VI) 化物复合物
Wai-Lun Man1, William W Y Lam, Shek-Man Yiu
1Department of Biology and Chemistry, City University of Hong Kong, Tat Che Avenue, Hong Kong, PRC.
Journal of the American Chemical Society
|November 26, 2004
概括
复合物很容易与基一起形成亚齐里丁化合物. X射线结晶学证实了这些新型的鲁(III) 亚齐里丁复合物的结构,揭示了亚齐里丁配体内的单键.
科学领域:
- 有机金属化学 有机金属化学
- 协调化学 协调化学
- 合成化学 合成化学
背景情况:
- 复合物是有机合成中的多功能催化剂.
- 亚齐里丁是具有显著合成功效的紧张的三分子异循环.
- 了解高价值与的反应性对于开发新的合成方法至关重要.
研究的目的:
- 为了研究一种特定的 ((VI) 复合物与各种基的反应.
- 合成和描述新型的鲁-亚齐里丁复合物.
- 用X射线晶体学阐明由此产生的复合体的结构特征.
主要方法:
- [RuVI ((N)) ((salchda)) ((CH3OH)) ]PF6与基 (2,3-二甲基-2-丁烯, styrene, trans-β-甲基styrene) 在皮里丁或1-methylimidazole的存在下发生的反应.
- (IV) 和 (III) 的中间体和产品的分离和表征.
- 用X射线结晶学测定关键的鲁(III) 亚齐里丁复合物的结构.
主要成果:
- 鲁 (VI) 前体很容易与基发生反应,形成鲁 (IV) 亚齐里丁中间体,后者随后还原为鲁 (III) 复合体.
- 一些与基替代的基产生了相应的鲁 (III) 亚齐里丁复合物.
- X射线晶体学证实了两种鲁 () 亚齐里丁复合物的结构,显示了Ru-N () 亚齐里丁的距离与中性亚齐里丁配体和亚齐里丁环内的单键相一致.
结论:
- 研究的鲁 ((VI) 复合物是通过与基因反应合成鲁-亚齐里丁复合物的有效前体.
- 反应过程中,最初形成一个Ru(IV) 种,然后再减少为Ru(III).
- 结构分析证实了亚齐里丁环的完整性及其与的协调.
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