Substituent-controlled, mild oxidative fluorination of iodoarenes: synthesis and structural study of aryl I(<scp>iii</scp>)- and I(<scp>v</scp>)-fluorides
作者:Joel Häfliger、Cody Ross Pitts、Dustin Bornemann、Roland Käser、Nico Santschi、Julie Charpentier、Elisabeth Otth、Nils Trapp、René Verel、Hans Peter Lüthi、Antonio Togni
DOI:10.1039/c9sc02162k
日期:——
of difluoro(aryl)-λ3-iodanes (aryl-IF2 compounds) and tetrafluoro(aryl)-λ5-iodanes (aryl-IF4 compounds) using trichloroisocyanuric acid (TCICA) and potassium fluoride (KF). Under these reaction conditions, selective access to either the I(III)- or I(V)-derivatives is predictable based solely on the substitution pattern of the iodoarene starting material. Moreover, the discovery of this TCICA/KF approach
我们报告了一种使用三氯异氰尿酸 (TCICA) 和钾合成二氟(芳基)-λ 3 -碘(芳基-IF 2化合物)和四氟(芳基)-λ 5 -碘(芳基-IF 4化合物)的温和方法氟化物(KF)。在这些反应条件下,仅根据碘芳烃起始材料的取代模式即可预测选择性获得 I( III )-或 I( V )-衍生物。此外,这种TCICA/KF方法的发现促使人们对精心设计的探针分子上的IF 2基团和邻位取代基之间的关系进行了详细的动态NMR、动力学、计算和晶体学研究。正是在这些实验中,揭示了邻位取代基在与TCICA和KF反应期间抑制I( III )-化合物进一步氧化氟化为I( V )-化合物的作用。此外,本文还讨论了这一经验趋势的一个值得注意的例外。
Ex-situ ChloGen: A facile and straightforward entry to Aryl-IF4 compounds
作者:Karim Ullah、Reza Kordnezhadian、Joachim Demaerel、Wim M. De Borggraeve、Ermal Ismalaj
DOI:10.1016/j.jfluchem.2024.110276
日期:2024.4
In this work, we present a new method for the facile preparation of aryl-IF compounds using KF and ex situ generated chlorine gas within a two-chamber reactor setup. Notably, the process stands out for its simplicity by omitting the use of specialized equipment and generating less chemical waste than the previously reported works. While demonstrating high efficiency at room temperature, the novel approach
Yagupol'skii, L. M.; Popov, V. I.; Pavlenko, N. V., Journal of Organic Chemistry USSR (English Translation), 1986, vol. 22, # 10, p. 1947 - 1950
作者:Yagupol'skii, L. M.、Popov, V. I.、Pavlenko, N. V.、Maletina, I. I.、Mironova, A. A.、et al.
DOI:——
日期:——
Phenyliodine(V) fluorides
作者:Sevim Hoyer、Konrad Seppelt
DOI:10.1016/j.jfluchem.2003.12.004
日期:2004.6
The known compound phenyltetrafluoroiodine(V) is shown by X-ray diffraction to have a tetragonal pyramidal structure with an apical phenyl group. This structure is compared to that of IF(OTeF5)(4), where the apical position is occupied by the fluorine atom. C6H5IF4 adds F-, forming C6H5IF5-, which has a pentagonal pyramidal structure with an apical phenyl group. Fluoride abstraction from C6H5IF4 by SbF5 results in the formation of the cation C6H5IF3+, which has a pseudotrigonal bipyramidal structure with the phenyl group occupying an equatorial position. Isoelectronic C6H5IOF2 has a similar structure, with the phenyl group and oxygen atom both occupying equatorial positions. (C) 2003 Elsevier B.V. All rights reserved.
MALETINA, I. I.;MIRONOVA, A. A.;ORDA, V. V.;YAGUPOLSKII, L. M., SYNTHESIS, BRD, 1983, N 6, 456-457
作者:MALETINA, I. I.、MIRONOVA, A. A.、ORDA, V. V.、YAGUPOLSKII, L. M.