One-Pot Synthesis of Diaryliodonium Salts Using Toluenesulfonic Acid: A Fast Entry to Electron-Rich Diaryliodonium Tosylates and Triflates
作者:Berit Olofsson、Mingzhao Zhu、Nazli Jalalian
DOI:10.1055/s-2008-1032050
日期:——
A direct synthesis of symmetric and unsymmetric electron-rich diaryliodonium salts is described. The use of MCPBA and toluenesulfonic acid delivers diaryliodonium tosylates in high yields. An in situ anion exchange has also been developed, giving access to the corresponding triflate salts.
Chemoselective Radiosyntheses of Electron-Rich [<sup>18</sup>F]Fluoroarenes from Aryl(2,4,6-trimethoxyphenyl)iodonium Tosylates
作者:Young-Do Kwon、Jeongmin Son、Joong-Hyun Chun
DOI:10.1021/acs.joc.9b00019
日期:2019.3.15
Hypervalent diaryliodonium salts have been used to produce various [F-18]fluoroarenes. The iodonium salt approach as a labeling precursor has been established to equally afford complex F-18-fluorinated molecules. Because of the inherent two aryl ring system connected to a central iodine atom, safeguarding the chemoselectivity during radiofluorination using diaryliodonium salts is important. Herein, we introduce a superior chemoselective radiosynthesis of [F-18]fluoroarenes using an aryl(2,4,6-trimethoxyphenyl)iodonium tosylate as a precursor for F-18-incorporation, even on electron-rich aryl rings.
New methodology in iodonium salt synthesis. Reactions of [hydroxy(tosyloxy)iodo]arenes with aryltrimethylsilanes
作者:Gerald F. Koser、Richard H. Wettach、Carol S. Smith
DOI:10.1021/jo01296a050
日期:1980.4
Gail, R.; Hocke, C.; Coenen, H. H., Journal of labelled compounds and radiopharmaceuticals, 1997, vol. 40, p. 50 - 52