Acknowledgments
The authors are greatly indebted to their co-workers whose names are cited in the references, for their enthusiasm and dedication. Financial support has been granted by M.I.U.R. (COFIN “Sintesi e reattività-attività di composti insaturi funzionalizzati) and the University of Camerino.
References
1. Simon, C.; Constantieux, T.; Rodriguez, J. Eur. J. Org. Chem. 2004, 4957. 2. Pätzel, M.; Liebscher, J. Synthesis 1995, 879. 3. Eicher, T.; Hauptmann, S. The Chemistry of Heterocycles, Georg Thieme Verlag: New York 1995. 4. Dean, F. M. Adv. Heterocycl. Chem. 1982, 30, 172. 5. Sundberg, R. J. In Comprehensive Heterocyclic Chemistry, Vol. 4, Katritzky A. R., Rees, C. W. Eds.; Pergamon: Oxford, 1984; p329. 6. Ellison, R. A. Synthesis 1973, 397 7. Ho, T. L. Synth. Commun. 1974, 4, 265 8. Stetter, H.; Kuhlmann, H. Org. React. 1991, 40, 407. 9. Heat, R. J.; Rock, C. O. Nat. Prod. Rep. 2002, 19, 581 10. Davis, B. R.; Garratt, P. J. In Comprehensive Organic Synthesis, Vol. 2, Trost, B. M.; Fleming, I.; Heathcock, C. H. Eds. Pergamon: Oxford, 1991, p795. 11. Perlmutter, P. Conjugate Addition Reactions in Organic Synthesis Pergamon: Oxford, 1992. 12. Rosini, G.; Ballini, R. Synthesis 1988, 833. 13. Nitro Compounds Recent Advances in Synthesis and Chemistry, Feuer, H.; Nielsen, A.T. Eds.; VCH: Weinheim, 1990. 14. Ono, N. The Nitro Group in Organic Synthesis, Wiley-VCH: New York, 2001. 15. The Chemistry of Amino, Nitroso, Nitro and Related Groups, Patai, S., Ed.; Wiley: Chichester, 1996. 16. Adams, J. P. J. Chem. Soc., Perkin Trans. 1 2002, 2586. 17. Seebach, D.; Lehr, F. Angew. Chem. Int., Ed. Engl. 1976, 15, 505. 18. Rosini, G. In Comprehensive Organic Synthesis, Trost, B. M. Ed.; Pergamon: Oxford, 1991; Vol. 2, p.321. 19. Luzzio, F. A. Tetrahedron 2001, 57, 915. 20. Ballini, R.; Bosica, G.; Fiorini, D.; Palmieri, A.; Petrini, M. Chem. Rev. 2005, 105, 933. 21. Ballini, R.; Petrini, M. Tetrahedron 2004, 60, 1017. 22. Pinnick, H. W. Org. React. 1990, 38, 655. 23. Nikalje, M. D.; Sayyed Ali, I.; Dewkar, G. K.; Sudalai, A. Tetrahedron Lett. 2000, 41, 959. 24. Vankar, Y. D.; Shah, K.; Bawa, A.; Singh, S. P. Tetrahedron 1991, 47, 8883.
