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(NH4)2S2O8-Mediated Diiodination of Alkynes with Iodide in Water: Stereospecific Synthesis of (E)-Diiodoalkenes

Qing Jiang, Jing-Yu Wang, Can-Cheng Guo*

*College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. of China, Email:

Q. Jiang, J.-Y. Wang, C.-C. Guo, Synthesis, 2015, 47, 2081-2087.

DOI: 10.1055/s-0034-1379910 (free Supporting Information)


The use of ammonium persulfate as an oxidant and iodide as an iodine source enables stereospecific diiodination of alkynes under mild conditions in water. The highly efficient reaction provides a broad range of (E)-diiodoalkenes.

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Key Words

persulfate salts, diiodination, alkenes, alkynes, water

ID: J66-Y2015