1. Hoffmann, R. W. Dehydrobenzenes, Cycloalkynes; Academic Press: New York, 1967; Sharp, J. T. In Comprehensive Organic Chemistry; Barton, D. H. R., Ollis, W. D., Eds.; Pergamon: Oxford, 1979; Vol. 1, p. 477; Rienecke, M. G. Tetrahedron 1982, 38, 427; Moody, C. J.; Whitham, G. H. Reactive Intermediates; Oxford University Press: Oxford, 1992 and references cited therein.
2. Campbell, C. D.; Rees, C. W.; J. Chem. Soc (C) 1969, 742, 748 and 752; See also Fleet, G. W. J.; Fleming, I. J. Chem. Soc (C), 1969, 1758.
3. For preparations of other substituted aminobenzotriazoles, see, for example, Hart, H.; Ok, D. J. Org. Chem. 1986, 51, 979; Hart, H.; Lai, C-Y.; Nurukogu, G. C.; Shamoniken, S. Tetrahedron 1987, 43, 5203; Rigby, J. H.; Holsworth, D. D.; James, K. J. Org. Chem. 1989, 59, 4019. For applications to the generation of 2,3-dihydronaphthalene and dehydrophenanthrene, see Hales, R. H.; Bradshaw, J. S.; Pratt, D. R. J. Org. Chem. 1971, 36, 314; Hales, R. H.; Bradshaw, J. S. J. Org. Chem. 1971, 36, 318; See also Rees, C. W.; Storr, R. C.; J. Chem. Soc. (C) 1969, 760.
4. Keating, M.; Peck, M. E.; Rees, C. W.; Storr, R. C. J. Chem. Soc., Perkin Trans. 1 1972, 1315; Graveling, F. Ph.D. thesis, University of Leicester, 1969.