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

A single step approach for the synthesis of non‐symmetrical tetraaryl‐α‐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‐α‐diimines, which upon cyclization yields a series of new non‐symmetrical 1,3,4,5‐tetraarylimidazolium chlorides, as stable N‐heterocyclic carbene (NHC) precursors.