Non-Symmetrical Tetraaryl-alpha-Diimines via Transimination: A Promising Route for Non-Symmetrical 1,3,4,5-Tetraarylimidazolium Chlorides

摘要

A single step approach for the synthesis of non-symmetrical tetraaryl-alpha-diimines via the transimination route at room temperature was developed. The reported procedure was found to be an elegant route for making non-symmetrical tetraaryl-alpha-diimines, which upon cyclization yields a series of new non-symmetrical 1,3,4,5-tetraarylimidazolium chlorides, as stable N-heterocyclic carbene (NHC) precursors.