The reaction of aromatic ethers with benzyltrimethylammonium dichloroiodate(1-) in acetic acid in the presence of zinc chloride at room temperature gave iodo-substituted aromatic ethers in good yields.
Electrophilic aryl-halogenation using N-halosuccinimides under ball-milling
作者:Anima Bose、Prasenjit Mal
DOI:10.1016/j.tetlet.2014.02.064
日期:2014.3
We report here a methodology of chemo- and regio-selective aryl bromination and iodination using respective N-halosuccinimides at room temperature in the absence of any solvents, catalyst/additives under ball-milling condition. However, for chlorination ceric ammonium nitrate was used as additive. The coupled product succinimide, produced from the reactions, was recycled via regeneration of NBS. This methodology works with the electron-donor substituted or unsubstituted arenes. (C) 2014 Elsevier Ltd. All rights reserved.