The Synthesis and Acid-Catalyzed Hydrolysis of N-(4-Substitutedphenyl)-O-Benzenedisulfonimides
作者:Yunus Bekdemir、Bilge Eren、Halil Kütük
DOI:10.1080/10426507.2011.642431
日期:2012.6
hydrolyses of some cyclic disulfonimides, N-(4-substitutedphenyl)-o-benzenedisulfonimides (1a–d) have been studied in concentrated aqueous acidic solutions. Analysis of the data by the Excess Acidity Method, activation parameters, substituent, and solventdeuteriumisotopeeffect are all indicate hydrolysis by an A-1 mechanism in the studied range. GRAPHICAL ABSTRACT
Halodediazoniations of Dry Arenediazonium <i>o</i>-Benzenedisulfonimides in the Presence or Absence of an Electron Transfer Catalyst. Easy General Procedures To Prepare Aryl Chlorides, Bromides, and Iodides
The paper reports the results of a wide study aimed at preparing aryl chlorides 3 (19 examples), bromides 4 (19 examples), and iodides 5 (9 examples) by halodediazoniation of dry arenediazonium o-benzenedisulfonimides 1 with tetraalkylammonium halides 2. The reactions were carried out in anhydrous acetonitrile at room temperature ( approximately 20 degrees C) in the presence of copper powder and at