Trifunctionalization of Aryl Iodides with Two Distinct Nitrogen and Carbon Electrophiles by Palladium/Norbornene Catalysis
作者:Jing Wang、Hui Wang、Zihan Wang、Linqiang Li、Cheng Qin、Xinjun Luan
DOI:10.1002/cjoc.202100467
日期:2021.10
highly chemo- and regioselective vicinal trifunctionalization of aryl iodides by palladium/norbornene (Pd/NBE) catalysis. The key feature of this new method is the introduction of two distinct nitrogen and carbon electrophiles, with a large gap in reactivity, for ortho-unsubstituted aryl iodides via an intermolecular and intramolecular C―H functionalization, respectively. Eight types of ipso terminations
在此,我们报告了通过钯/降冰片烯 (Pd/NBE) 催化对芳基碘化物进行高度化学和区域选择性的邻位三官能化。这种新方法的关键特征是引入了两个不同的氮和碳亲电子的,在反应性有很大的差距,对邻-未被取代的芳基碘经由分别的分子内和分子CA€•ħ官能化,。八种类型的本位终端可以与两个邻位-amination和邻烷基化,得到多种多取代的苯并杂环支架。硅系衬底可以通过以下方式产生多官能芳烃单步操作。值得注意的是,这些产品表现出具有大斯托克斯位移的全色可调强荧光发射,并且产品 7r 可以作为荧光探针来特异性靶向活细胞中的溶酶体。