In our search for novel heterocyclic systems, lP2 we have been intrigued by the intramolecular interactions3s4 of nitrenes4 and nitrenoid species with nitrogen atoms. Of special interest is the possibility of nitrogen-nitrogen bond formation in situations where potential competitive processes exi~ tl~.~ We have reported earlier2 that the aryl nitrene 2, generated thermally from 3-(2-pyridyl)-2, 1-benzisoxazole6 (l), gave exclusively nitrogen- ...
