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。