Iodobenzene Dichloride as a Stoichiometric Oxidant for the Conversion of Alcohols into Carbonyl Compounds; Two Facile Methods for Its Preparation
作者:Chi Zhang、Xue-Fei Zhao
DOI:10.1055/s-2007-965889
日期:2007.2
the preparation of iodoarene dichlorides from iodoarenes have been developed. One employs solid sodium chlorite as a chlorinating agent in dilute hydrochloric acid solution; the other uses sodium hypochlorite as a chlorinating agent still in hydrochloric acid solution, which is more robust than the sodium chlorite system. Typically, the preparation of iodobenzene dichloride from iodobenzene was performed
A solvent-free synthesis of (dichloroiodo)arenes from iodoarenes
作者:Agnieszka Zielinska、Lech Skulski
DOI:10.1016/j.tetlet.2003.11.071
日期:2004.1
adduct (UHP), a stable, inexpensive, and easily handled oxidant. The reactions were complete in 15 min at 85 °C. The melts thus obtained were reacted with excess hydrochloric acid to afford crude (dichloroiodo)arenes, ArICl2, in 64–98% yields.
Ru-Catalyzed Oxidations with Iodosylbenzene Derivatives. Substituent Effects on Selectivity in Oxidation of Sulfides and Alcohols
作者:Paul Müller、José Godoy
DOI:10.1002/hlca.19830660618
日期:1983.9.21
Oxidation of sulfides with PhIO/RuCl2 (PPh3)3 leads to sulfones. Electronwithdrawing substituents in the aromatic ring of PhIO reduce the reactivity and improves selectivity of the system. Thus, with m-iodosylbenzoic acid sulfides are converted to sulfoxide. Under the same conditions aliphatic primary alcohols are transformed to aldehydes with m-iodosylbenzoic acid, while PhIO affords carboxylic acids
Novel Chlorination of Imidazo‐Fused Heterocycles via Dichloro(aryl)‐λ
<sup>3</sup>
‐iodanes
作者:Peng‐Fei Dai、Huiqin Xu
DOI:10.1002/ejoc.202200779
日期:2022.8.12
An efficient protocol for chlorination of imidazo-fused heterocycles with dichloro(4-(trifluoromethyl)phenyl)-λ3-iodanes has been developed under very mild conditions. The present approach avoids the need of toxic chlorinating reagents, strong stoichiometric oxidants, metal catalysts and harsh reaction conditions. Control experiments indicate that the chlorinated reaction proceeds through an electrophilic