This work is concerned with the nature of the electronic state of the reacting nitrene Three different types of optically active azides were prepared, an o-azidoalkylbenzene, an alkyl azidocarbonate, and an alkanesulfonyl azide. Pyrolysis of the azides led in each case to cyclization at the asymmetric carbon atom to give an indoline, an oxazolone, and a sultam, respectively. The indoline and ovazolone were shown still to be optically active, and thus it ...
