Synthesis of Five-Membered Iodine-Nitrogen Heterocycles from Benzimidazole-Based Iodonium Salts

J Org Chem. 2018 Oct 5;83(19):12056-12070. doi: 10.1021/acs.joc.8b01995. Epub 2018 Sep 20.

Abstract

Pseudocyclic 2-benzimidazolyl-substituted diaryliodonium salts were obtained by the reaction of the corresponding [hydroxy(tosyloxy)iodo]arenes with arenes in the presence of trifluoromethanesulfonic acid. X-ray structural analysis of these iodonium salts confirmed their pseudocyclic structure with a short (2.57-2.58 Å) noncovalent I···N interaction. Treatment of 2-benzimidazolyl-substituted diaryliodonium triflates with a base afforded novel five-membered iodine-nitrogen heterocycles.

Publication types

  • Research Support, Non-U.S. Gov't