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.
The enantioselective synthesis of 2-aryl-substituted 2,3-dihydroquinolin-4-ones, a class of heterocyclic compounds with interesting biological activities, has been achieved through a Brønsted acidcatalyzed enantioselectiveintramolecular Michael addition. The products are available in moderate to high yields and with good enantioselectivities. Graphical Abstract Asymmetric Brønsted Acid-catalyzed Intramolecular