通过使用硫酸化硫酸的循环化,对 [2.2]Paracyclophane-DerivedN-Sulfonylimines进行脱氧化
Yang Zhao1, Xiang Li1, Wen-Hao Deng2
1State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian, Liaoning 116023, P. R. China.
这项研究提出了一种新的 dearomatization 的 [2.2]paracyclophane-derived循环N-sulfonylimines使用硫化物. 这种反应有效地产生了 dearomative cyclopropanes,展示了一个新的合成途径.
科学领域:
- 有机化学 有机化学
- 合成方法论 合成方法论
- 循环添加反应的反应
背景情况:
- [2.2]由于它们的桥梁芳香系统,Paracyclophanes具有独特的结构和电子特性.
- 循环N-硫胺是有机合成中的多功能中间体.
- 化反应为复杂的碳循环框架提供了有效的路径.
研究的目的:
- 开发一种新的 dearomatization 策略,用于 [2.2] paracyclophane 衍生周期性 N-sulfonylimines.
- 为了探索这些基质的循环化,使用硫化物.
- 调查产生的产品的潜在机制和潜在应用.
主要方法:
- 合成 [2.2] 帕西克洛芬衍生的循环N-硫胺.
- 通过使用硫化物进行循环化去氧化.
- 密度函数理论 (DFT) 计算以阐明反应机制.
主要成果:
- 实现了前所未有的 [2.2] 偏烯酸衍生周期性N-硫烯酸胺的亲氧化.
- 产生了一系列具有良好的产量的芳香性环烯.
- DFT的计算表明,独特的 [2.2] 环旋骨架和N-硫基组有助于减弱芳香度,从而促进 dearomatization.
结论:
- 从 [2.2] 帕拉西克洛衍生物中建立了 dearomative cyclopropanes 的新合成途径.
- 证明了使用硫化物进行这种转换的可行性.
- 突出了合成环烯产品进一步功能化的潜力.
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