在o-hydroxybiaryls中激发状态的分子内质子转移:到二芳香化合物的新途径
1Department of Chemistry, Box 3065, University of Victoria, Victoria, British Columbia, Canada V8W 3V6.
Journal of the American Chemical Society
|January 30, 2003
概括
在纳基中,激发状态的分子内质子转移 (ESIPT) 有效地形成二二. 这种反应提供了一条干净,高产的合成路径,以获得有价值的松化合物.
科学领域:
- 有机化学 有机化学
- 摄影化学的使用.
- 合成化学 合成化学
背景情况:
- 激发状态的分子内质子转移 (ESIPT) 是一个关键的光化学过程.
- 氧松和二氧氧松是重要的异环化合物,具有多种应用.
研究的目的:
- 为了研究o-(1-naphthyl) phenol和1-(1'-naphthyl) 2-naphthol系统中的ESIPT反应.
- 通过ESIPT建立一种新的合成途径,以获得二二子桑.
主要方法:
- 研究ESIPT在纳夫甲基衍生物 (化合物3和4) 中.
- 使用标签来识别反应途径.
- 描述了二二子桑产物 (化合物5和7) 的形成.
主要成果:
- 观察到高效的ESIPT从OH到纳环的7'-碳.
- 通过胺甲基中间体实现了二二二二二的高效形成 (量子产量0.1-0.2).
- 在2'-芳香位置检测到相关的ESIPT通路.
结论:
- 描述的ESIPT反应提供了一种清洁,高效和高产的方法来合成黄和二黄.
- 标签证实了这些系统中的其他ESIPT途径.
相关概念视频
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