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
One-Pot Preparations of (Dichloroiodo)arenes from Some Arenes
作者:Piotr Lulinski、Nicolas Obeid、Lech Skulski
DOI:10.1246/bcsj.74.2433
日期:2001.12
Arenes (ArH) were substituted with some transient I3+ species, generated in situ in appropriate, anhydrous I2/NaIO4 or NaIO3/AcOH/Ac2O/concd H2SO4 mixtures, to form soluble organoiodine(III) intermediates, ArISO4. Next, excess concd hydrochloric acid was added to precipitate out the title ArICl2, and isolated in 46–88% optimized crude yields.
Ceric Ammonium Nitrate as the Novel Oxidizing Agent for the Facile Synthesis of (Dichloroiodo)arenes
作者:Nilesh P. Tale、Amol V. Shelke、Nandkishor N. Karade
DOI:10.1080/00397911.2011.573172
日期:2012.10.15
Ceric ammonium nitrate (CAN) has been found to be a remarkable oxidizing agent for the oxidative conversion of iodoarenes to (dichloroiodo)arenes in acetic acid using aqueous HCl. The reaction of CAN with HCl generates in situ molecular chlorine, which is responsible for the oxidation. This method avoids the use of hazardous, toxic, and corrosive gaseous chlorine.