The Double <i>N</i>‐Arylation of Primary Amines: Toward Multisubstituted Carbazoles with Unique Optical Properties

Abstract

A powerful method: A variety of sterically crowded, substituted carbazoles have been prepared from anilines and biphenyl compounds (see scheme). The method enabled the preparation of 2,2′-dicarbazolyl-1,1′-biaryl compounds, which show excimer (or exciplex) emissions with significant solvent dependency.