Catalyst-Free Aromatic Radiofluorination via Oxidized Iodoarene Precursors
作者:Young-Do Kwon、Jeongmin Son、Joong-Hyun Chun
DOI:10.1021/acs.orglett.8b03450
日期:2018.12.21
Oxidizediodoarenes (OIAs), prepared via mCPBA-mediated oxidation, have been demonstrated as versatile precursors for the synthesis of [18F]fluoroarenes in the absence of catalysts. OIAs have been identified as intermediates in single-pot syntheses of iodonium salts and ylides but have never been recognized as radiofluorinationprecursors. Here, the isolated OIAs were used without any catalysts to
Synthesis of Diverse Aryliodine(
<scp>III</scp>
) Reagents by Anodic Oxidation
<sup>†</sup>
作者:Bing Zu、Jie Ke、Yonghong Guo、Chuan He
DOI:10.1002/cjoc.202000501
日期:2021.3
An anodic oxidation enabled synthesis of hypervalent iodine(III) reagents from aryl iodides is demonstrated. Under mild electrochemical conditions, a range of aryliodine(III) reagents including iodosylarenes, (difunctionaliodo)arenes, benziodoxoles and diaryliodonium salts can be efficiently synthesized and derivatized in good to excellent yields with high selectivity. As only electrons serve as the
Metal-Free<i>O</i>-Arylation of Carboxylic Acid by Active Diaryliodonium(III) Intermediates Generated<i>in situ</i>from Iodosoarenes
作者:Toshifumi Dohi、Daichi Koseki、Kohei Sumida、Kana Okada、Serina Mizuno、Asami Kato、Koji Morimoto、Yasuyuki Kita
DOI:10.1002/adsc.201700843
日期:2017.10.25
metal‐free arylative coupling of carboxylic acids using iodosoarenes without the use of a catalyst and base, which is applicable to even a highly‐polar molecule bearing multiple alcohol groups, is reported. The in situ preparation of the reactive diaryliodonium(III) carboxylates is the important key to this approach, and the introduction of the trimethoxybenzene auxiliary enables both the smooth salt