[1] Review: Steglich, W.; Jeschke, R.; Buschmann, E. Gazz. Chim Ital. 1986, 116, 361.
[2] Boger, D. L. Tetrahedron 1983, 39, 2869.
[3] Krantz, A.; Hoppe, B. J. Am. Chem. Soc. 1975, 97, 6590.
[4] McNab, H.; Withell, K. Tetrahedron 1996, 52, 3163.
[5] Alajarín, M.; Vidal, A.; Tovar, F.; Molina, P., manuscript in preparation. See also our communication to The First International Electronic Conference on Synthesis Organic Chemistry (ECSOC-1).
[6] Ramsey, B. G.; Stoodley, R. J. J. Chem. Soc., Chem. Commun. 1971, 450.
[7] Jackson, J. R.; Stoodley, R. J. J. Chem. Soc., Chem. Commun. 1971, 647.
[8] Olofson, R. A.; Morrison, D. S.; Banerji, A. J. Org. Chem. 1984, 49, 2653.
[9] Olofson, R. A.; Van der Meer, P. K.; Hoskin, D. H.; Bernheim, M. Y.;Stournas, S.; Morrison, D. S. J. Org. Chem 1984, 49, 3367; Bashir, N.; Gilchrist, T. L. J. Chem. Soc., Perkin Trans. 1 1973, 868; Wentrup, C.; Gross, G. Angew. Chem., Int. Ed. Engl. 1983, 22, 543.