Iodoamination of Alkenyl Sulfonamides by Potassium Iodide and Hydrogen Peroxide in Aqueous Medium
作者:Sabrina Giofrè、Roberto Sala、Egle Maria Beccalli、Leonardo Lo Presti、Gianluigi Broggini
DOI:10.1002/hlca.201900088
日期:2019.7
A procedure for the iodoamination of unfunctionalized olefins tethered to a tosyl‐protected NH‐group has been developed. The combined use of KI and H2O2 in aqueous medium was effective for the preparation of iodomethyl‐substituted nitrogen‐containing heterocycles. The selective exo‐trig iodocyclization provided 1,2‐bifunctional 5‐, 6‐, and 7‐membered cyclic skeletons.
已经开发了一种方法,用于将未官能化的烯烃束缚在甲苯磺酰基保护的NH-基团上进行碘化。在水性介质中联合使用KI和H 2 O 2可以有效地制备碘甲基取代的含氮杂环。选择性的exo-trig碘环化提供了1,2-双功能的5、6和7元环状骨架。