Thermal and photolytic decomposition of α- and β-naphthyl azides

Thermal decomposition of α- and β-naphthyl azide gives dibenzo[a,h]phenazine (I), and photoylsis of the latter azide yields 1-amino-2-NN-diethylamino-naphthalene (V); the formation of these and other products is discussed in terms of nitrene intermediates.