通过光催化方法对芳香族底物进行脱芳烃化已经获得了越来越重要的关注,以达到分子复杂性。尽管人们将大量注意力放在非活性芳烃、萘酚和 N 基杂芳烃上,但迄今为止,芳胺仍处于背景中。在此,我们报道了一种在可见光照射下萘胺的有氧、脱氢羟基化的光催化策略。我们的研究强调了单线态氧的产生是芳香性破坏的可行机制,减轻了由目标芳胺直接氧化引起的选择性问题。最后,我们在后期多元化活动中展示了所获得的脱芳烃产品的合成价值。
Brønsted Acid Promoted Facile Synthesis of Benzoacridines from Aromatic Aldehydes and
<i>N</i>
‐Phenyl Naphthylamines
作者:Ting Chen、Bin Tan、Zhi Huang、Guojiang Mao、Shanping Chen、Guo‐Jun Deng
DOI:10.1002/cbdv.202300122
日期:——
A facile method for the rapid synthesis of benzoacridines has been described. This protocol promoted by p-toluenesulfonic acid starts from aromatic aldehydes and N-phenyl naphthylamines, affording a variety of benzoacridines in 30–90 % yields under metal-free conditions. The present approach involves a cascade of condensation, Friedel-Crafts alkylation, annulation and dehydroaromatization in one pot