afforded a series of five new dihydrophenazines instead of the expected cyclohexadiene‐1,2‐diimines. The reaction most likely proceeds via a 1,6‐electrocyclic path and provides a convenient access to an important class of nitrogen heterocycles. Subsequent treatment of the mesityl derivative with chloromethyl pivalate and silver triflate led to the corresponding benzimidazolium salt.