黄金复合物与远程置换的氨基N-异环碳化合物
Sofie M P Vanden Broeck1, Nikolaos V Tzouras1,2, Marina Saab1
1Department of Chemistry and Centre of Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000 Ghent, Belgium. Steven.Nolan@UGent.be.
Dalton transactions (Cambridge, England : 2003)
|July 17, 2023
概括
这项研究探讨了4-RN-1,3-Ar2-imidazolium盐的金化,揭示了特定位点的反应性. 还观察到一种罕见的金胺酸重新排列到异常的伊米达-5-伊利丁复合体.
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.
- 计算化学的计算化学
背景情况:
- 伊米达盐是有机金属化学中的多功能联体.
- 金 (((I) 复合体表现出独特的反应性和催化性能.
- 了解化区域选择性对于催化剂设计至关重要.
研究的目的:
- 为了研究4-RN-1,3-Ar2-imidazolium盐的金属化通过黄金.
- 探索影响化部位 (C2,C5或4-RN) 的因素.
- 描述一种罕见的金胺酸重新排列到异常的伊米达-5-伊利丁复合物.
主要方法:
- 用4-RN-1,3-Ar2-imidazolium连接物合成和表征黄金 (I) 复合物.
- 系统地改变反应剂和反应条件以控制化场所.
- 密度函数理论 (DFT) 计算以阐明反应机制.
主要成果:
- 金的化发生在C2,C5和4-RN位置,这取决于反应条件.
- 观察到一种新型的黄金 (I) 氨化物对异常的伊米达-5-伊利丁 (I) 黄金 (I) 复合物的直接重新排列.
- DFT研究表明,三叶酸 (TfO-) 在重新排列机制中促进了质子转移.
结论:
- 黄金的区域选择性 (I) 化对伊米达盐的作用可以控制.
- 观察到的重新排列突出显示了黄金-联结体相互作用的新反应途径.
- 计算洞察力为观察到的转换提供了机械的理解.
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