Copper‐catalyzed synthesis of
<i>N</i>
‐aryl acridones from 2‐amino benzophenones and aryl boronic acids via sequential double oxidative C–N coupling
作者:Yang He、Liang Xu、Jinli Zhang、Yu Wei
DOI:10.1002/aoc.5316
日期:2020.2
Pot‐economic synthesis of N‐aryl acridones was performed with 2‐aminobenzophenones and aryl boronic acids as starting materials. Cu‐catalyzed chelation‐assisted oxidative C–N cross‐coupling reactions were well merged with the following intra‐molecular oxidative dehydrogenative C–H amination reactions under an air atmosphere. The use of reagent capsules can further resolve the compatibility problem
Copper-catalyzed intramolecular direct amination of sp2 C–H bonds for the synthesis of N-aryl acridones
作者:Wang Zhou、Yong Liu、Youqing Yang、Guo-Jun Deng
DOI:10.1039/c2cc35425j
日期:——
A copper-catalyzed approach for the synthesis of N-arylacridones via sp(2) C-H bond amination using air as oxidant under neutral conditions is disclosed. This reaction not only provides a complementary method for synthesizing medicinally important acridones, but also offers a new strategy for sp(2) C-H bond amination.
of acridone derivatives has been developed from simple and easily accessible o-aminobenzamides and 2-(trimethylsilyl)aryl triflates. The base played an important role in the selective controlled synthesis of N-H and N-aryl acridones. A preliminary study on the fluorescence properties of N-aryl acridones demonstrated that they could be used as fluorescent materials with a broad emission range.