RuCl<sub>3</sub>-Catalyzed Oxidation of Iodoarenes with Peracetic Acid: New Facile Preparation of Iodylarenes
作者:Alexey Y. Koposov、Rashad R. Karimov、Andrey A. Pronin、Tatyana Skrupskaya、Mekhman S. Yusubov、Viktor V. Zhdankin
DOI:10.1021/jo062073s
日期:2006.12.1
New facile methodology for the preparation of pentavalent iodine compounds using peraceticacid as an oxidant in the presence of catalytic amounts of ruthenium trichloride is described. The new procedure allows the preparation of several previously unknown iodylarenes bearing strongly electron-withdrawing CF3 groups in the aromatic ring.
Transition metal-mediated oxidations utilizing monomeric iodosyl- and iodylarene species
作者:Mekhman S. Yusubov、Victor N. Nemykin、Viktor V. Zhdankin
DOI:10.1016/j.tet.2010.04.046
日期:2010.7
are reported. A convenient procedure for preparation of iodylarenes via RuCl3-catalyzed oxidation of iodoarenes has been developed. This procedure allows the generation of highly reactive monomeric iodine(V) species, which are excellent oxidants toward alcohols and hydrocarbons in situ. A broad range of substrates can be oxidized to carbonyl compounds by a tandem catalytic system based on the Ru(III)-catalyzed
报道了使用高价碘物质进行的几种过渡金属介导的氧化反应。已经开发了通过RuCl 3催化的碘代芳烃的氧化制备芳烃的简便方法。该程序允许产生高反应性的单体碘(V)物种,它们是原位对醇和碳氢化合物的极佳氧化剂。的宽范围的底物可以通过基于ARIO的钌(III)催化的再氧化到ARIO串联催化体系被氧化为羰基化合物2使用过硫酸氢钾®作为氧化剂。结果表明,亲电子碘(III)物种源自低聚的碘烷基苯硫酸盐(PhIO)3 SO 3是在金属卟啉配合物存在下催化氧化芳香烃的有效氧化剂。
NUCLEOPHILIC FLUORINATION OF AROMATIC COMPOUNDS
申请人:The Regents of the University of California
公开号:EP2307337B1
公开(公告)日:2016-01-13
[EN] NUCLEOPHILIC FLUORINATION OF AROMATIC COMPOUNDS<br/>[FR] FLUORATION NUCLÉOPHILE DE COMPOSÉS AROMATIQUES
申请人:UNIV CALIFORNIA
公开号:WO2010008522A2
公开(公告)日:2010-01-21
Iodylbenzene derivatives substituted with electron donating as well as electron withdrawing groups on the aromatic ring are used as precursors in aromatic nucleophilic substitution reactions. The iodyl group (IO2) is regiospecifically substituted by nucleophilic fluoride to provide the corresponding fluoroaryl derivatives. No-carrier-added [F-18] fluoride ion derived from anhydrous [F- 18]KF/Kryptofix, [F-18]CsF or a quaternary ammonium fluoride (e.g., Me4NF, Et4NF, n-Bu4NF, (PhCH2)4NF) exclusively substitutes the iodyl moiety in these derivatives and provides high specific activity F- 18 labeled fluoroaryl analogs. Iodyl derivatives of a benzothiazole analog and 6-iodyl-L-dopa derivatives have been synthesized as precursors and have been used in the preparation of no-carrier-added [F-18]fluorobenzothiazole as well as 6-[F-18]fluoro-L-dopa.
Mild and efficient synthesis of iodylarenes using Oxone as oxidant
作者:Natalia Soldatova、Pavel Postnikov、Anna A. Troyan、Akira Yoshimura、Mekhman S. Yusubov、Viktor V. Zhdankin
DOI:10.1016/j.tetlet.2016.08.038
日期:2016.9
Mild and efficientmethod for the preparation of iodylarenes by oxidation of iodoarenes with Oxone in aqueous acetonitrile at room temperature is described. This new procedure allows the preparation of various iodylarenes with electron-donating or electron-withdrawing substituents in the aromatic ring including the previously unknown 1,2-diiodylbenzene.