作者:Quan‐Qing Zhao、Jun Chen、Xue‐Song Zhou、Xiao‐Ye Yu、Jia‐Rong Chen、Wen‐Jing Xiao
DOI:10.1002/chem.201901665
日期:2019.6.18
Alkene bifunctionalizations are powerful tools for the rapid construction of structurally complex and valuable scaffolds, and such reactions typically involve the use of transition‐metal catalysts or organocatalysts. Here, we report for the first time a photogenerated neutral nitrogen radical catalyzed intermolecular alkene bifunctionalization by using allyl sulfones as the source of both the carbon
烯烃双官能化是快速构建结构复杂且有价值的支架的强大工具,此类反应通常涉及使用过渡金属催化剂或有机催化剂。在这里,我们首次报道了在温和的条件下,使用烯丙基砜作为碳和砜官能团的来源,光生性中性氮自由基催化了分子间烯烃双官能化。该协议成功的关键涉及从N-(2-乙酰苯基)苯磺酰胺催化剂中可见光介导的以氮为中心的自由基原位生成,以及烯丙基砜的活化以生成反应性物种。初步的控制实验支持了假定的机制。