Visible‐Light‐Induced Diradical‐Mediated
<i>ipso</i>
‐Cyclization towards Double Dearomative [2+2]‐Cycloaddition or Smiles‐Type Rearrangement
作者:Guangjin Zhen、Guohui Zeng、Kai Jiang、Furong Wang、Xiaohui Cao、Biaolin Yin
DOI:10.1002/chem.202203217
日期:2023.3.13
ipso-cyclization involving dearomatizing spiro-intermediates of aromatic compounds towards divergent reaction pathways deserves investigation but has been rarely reported so far. By tuning the rate of C−S bond cleavage in the key dearomatizing spiro intermediate, a chemical divergent reaction of (hetero)aryl sulfonamides has been achieved in a visible-light-induced energy transfer reaction pathway involving diradical
双自由基介导的 ipso环化涉及将芳香族化合物的螺环中间体脱芳构化到不同的反应途径值得研究,但迄今为止很少有报道。通过调节关键的脱芳构化螺环中间体中 C-S 键的断裂速率,在涉及双自由基物种的可见光诱导能量转移反应途径中实现了(杂)芳基磺酰胺的化学发散反应。