2839-50-1Relevant articles and documents
SNAr Reaction/Claisen Rearrangement Approach to 2,4-Diisoprenylxanthones: Total Synthesis of Garcinone A
Mochizuki, Miho,Fujimoto, Yuuki,Yanai, Hikaru,Matsumoto, Takashi
, p. 1511 - 1516 (2020)
A total synthesis of garcinone A, a natural xanthone possessing a 2,4-diisoprenylated structure, was accomplished by utilizing a readily available 1,3-difluoroxanthone derivative as the key intermediate through the installation of two isoprenyl side chains by an SNAr reaction with the alkoxide of 1,1-dimethylallyl alcohol followed by a Claisen rearrangement. The strategy also permitted the selective installation of mutually different allylic moieties at the C2 and C4 positions.
Copper-Catalyzed One-Pot Synthesis of Dibenzofurans, Xanthenes, and Xanthones from Cyclic Diphenyl Iodoniums
Zhu, Daqian,Li, Min,Wu, Zhouming,Du, Yongliang,Luo, Bingling,Huang, Peng,Wen, Shijun
, p. 4566 - 4571 (2019/07/09)
Oxygenation of cyclic diphenyl iodoniums (CDPIs) with varied medium-ring sizes has been fully investigated. This practical copper-catalyzed tandem reaction of CDPIs with water as the oxygen source enables the construction of derivatised dibenzofurans and xanthenes at moderate to good yields. Moreover, structurally important xanthones are also successfully accessed under the oxygenation conditions with additional TEMPO.
Concise synthesis of xanthones by the tandem etherification—Acylation of diaryliodonium salts with salicylates
Liu, Gaoxiaozheng,Wu, Chao,Chen, Bifeng,He, Ru,Chen, Chao
, p. 985 - 988 (2018/04/05)
An efficient synthetic method for multi-substituted xanthones was developed. The reaction of diaryliodonium salts and salicylates was employed for the preparation of the xanthones. This method proceeded through an intermolecular etherification-acylation t
