... 1093 Synlett 1999, No. ... 1988, 53, 4793. (b) Hughes, P.; Martin, M.; Clardy, J. Tetrahedron Lett. 1980, 21, 4579. ... 1985, 686. (7) For the synthesis of 2-azabicyclohexanes via enone-alkene photocycloaddition, see: (a) Tamura, Y.; Ishibashi, H.; Hirai, M.; Kita, Y.; Ikeda, M. J. Org. ...