激进化非共振异基C-H键和异环的高通量多样化
Dung L Golden1,2, Kaitlyn M Flynn1,3, Santeri Aikonen4,5
1Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States.
Chem
|August 7, 2024
概括
这项研究引入了一种新的光化学方法来化具有挑战性的3-基胺C-H键. 这一突破为进一步化学合成提供了有价值的异基化物.
科学领域:
- 有机化学 有机化学
- 摄影化学的使用.
- 异环化学 异环化学
背景情况:
- 由于原子的基本性和环的多种反应性,化中异基C ((sp3) -H键的选择性功能化具有挑战性.
- 现有的方法主要通过极性通路准2 - 和4 - 烯,使3 - 烯在很大程度上无法获得.
- 在基醇芳香物中功能化非共振位置仍然是一个重要的合成障碍.
研究的目的:
- 开发一种新的方法,用于对3烯和相关化合物中非共振异基C ((sp3) -H键的选择性化.
- 克服现有的合成策略的局限性,以使这些具有挑战性的职位发挥作用.
- 为随后的交叉合反应提供多功能中间体.
主要方法:
- 使用N-chloro-sulfonamide试剂进行光化学促进的激素化.
- 密度函数理论 (DFT) 计算以了解反应能量和优化条件.
- 高通量实验用于探索与合成中间体的交叉合反应.
主要成果:
- 成功化非共振异基C ((sp3) -H位点在3-甲和相关的甲甲醇芳香物中.
- 鉴定N-硫胺为最佳试剂,平衡基因链传播能量.
- 证明生成的异基化物作为C-H交叉合反应中的关键中间体.
结论:
- 一个新的,操作上简单的光化学协议使得以前无法获得的3-基胺C-H键的功能化成为可能.
- 开发的方法提供了一条容易通往异基化物的途径,扩大了合成效用.
- 这种方法促进了C-H交叉合反应与多种核友,包括氧化敏感的反应.
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