Ready access to organoiodides: Practical hydroiodination and double-iodination of carbon-carbon unsaturated bonds with I-2

摘要

By using I-2 or I-2/H3PO3 system, various alkenes and alkynes were converted to the corresponding alkyl and alkenyl iodides in good yields. In the presence of I-2, alkynes could be di-iodinated using H2O as the solvent in air at room temperature. This method also features the simple work-up procedure since the pure product could be obtained by extraction. Additionally, for the first time, combining with the nontoxic and cheap phosphonic acid H3PO3, alkenes and alkynes were also hydroiodinated successfully, which provides a simple and practical approach for synthesis of organoiodides. (C) 2019 Elsevier Ltd. All rights reserved.