102023-92-7Relevant articles and documents
Synthesis of xanthones, thioxanthones and Acridones by a metal-free photocatalytic oxidation using visible light and molecular oxygen
Chinchilla, Rafael,Torregrosa-Chinillach, Alejandro
, (2021/06/12)
9H-Xanthenes, 9H-thioxanthenes and 9,10-dihydroacridines can be easily oxidized to the corresponding xanthones, thioxanthones and acridones, respectively, by a simple photo-oxidation procedure carried out using molecular oxygen as oxidant under the irradiation of visible blue light and in the presence of riboflavin tetraacetate as a metal-free photocatalyst. The obtained yields are high or quantitative.
Synthesis of Acridones by Palladium-Catalyzed Buchwald-Hartwig Amination
Janke, Julia,Villinger, Alexander,Ehlers, Peter,Langer, Peter
, p. 817 - 820 (2019/04/25)
The Buchwald-Hartwig amination allows an efficient and convenient synthesis of biologically and pharmaceutically important acridones by formation of a six-membered ring. With the described method, a number of derivatives have been synthesized in up to 95% yield by using a variety of anilines as well as benzylic and aliphatic amines.
Copper-catalyzed intramolecular direct amination of sp2 C-H bonds for the synthesis of N-aryl acridones
Zhou, Wang,Liu, Yong,Yang, Youqing,Deng, Guo-Jun
supporting information, p. 10678 - 10680 (2012/11/07)
A copper-catalyzed approach for the synthesis of N-aryl acridones via sp2 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 sp2 C-H bond amination.