Photoredox Catalyzed [3 + 2]-Annulation Reaction of Pyridinium 1,4-Zwitterionic Thiolates with Alkenes: Synthesis of Dihydrothiophenes
作者:Yong-Chun Luo、Yang Wang、Run Shi、Xu-Gang Zhang、Huan-Huan Zhang、Peng-Fei Xu
DOI:10.1021/acs.orglett.3c02068
日期:2023.8.25
Pyridinium 1,4-zwitterionic thiolates are usually used to develop ionic annulation reactions. However, radical reactions were rare. We developed a photoredox catalyzed [3 + 2]-annulation reaction of pyridinium 1,4-zwitterionic thiolates with alkenes, disclosed the new reactivity of pyridinium 1,4-zwitterionic thiolate, and provided a new synthetic method for dihydrothiophene.
吡啶鎓 1,4-两性离子硫醇盐通常用于开发离子环化反应。然而,激进反应很少见。我们开发了光氧化还原催化的1,4-两性离子硫醇吡啶鎓与烯烃的[3+2]环化反应,揭示了1,4-两性离子硫醇吡啶鎓的新反应活性,并提供了二氢噻吩的新合成方法。