K. Chaffee et al., A METAL-MEDIATED [6- COUPLING OF AZIRINES AND CYCLOHEPTATRIENE(3] CYCLOADDITION REACTION ), Tetrahedron letters, 36(10), 1995, pp. 1577-1580
UV irradiation of tricarbonyl(cycloheptatriene)chromium(0) and 2-pheny
l-1-azirines through pyrex at O degrees C leads to 7-aza-8-phenylbicyc
lo[4.3.1]deca-2,4,7-trienes via a [6 + 3] cycloaddition of the azirine
to the cycloheptatriene ring.