A simple and efficient method for the preparation of α,α-dichloroketones, α,α-dibromoketones, and α,α-diiodoketones by oxyhalogenation of alkynes using oxone® and KX (X = Cl, Br, or I) is described.
(NH4)2S2O8-Mediated Diiodination of Alkynes with Iodide in Water: Stereospecific Synthesis of (E)-Diiodoalkenes
作者:Can-Cheng Guo、Qing Jiang、Jing-Yu Wang
DOI:10.1055/s-0034-1379910
日期:——
A new approach to the stereospecific diiodination of alkynes under mild conditions has been developed. This protocol employs ammonium persulfate as an oxidant and iodide as an iodine source, and provides a highly efficient and general method for the preparation of a broad range of (E)-diiodoalkenes in water.