1. Spitzner, D. In Science of Synthesis; Black, D. St. C., Ed.; Georg Thieme Verlag KG: Stuttgart, 2005, Vol. 15, p. 11.
2. Spitzner, D. In Methoden der Organischen Chemie (Houben-Weyl); Kreher, E., Ed.; Georg Thieme Verlag: Stuttgart, 1992, Vol. E7b, p. 286.
3. Belen'kii, L. I.; Kruchkovskaya, N. D.; Gramenitskaya, V. N. In Advances in Heterocyclic Chemistry; Katritzky, A. R., Ed.; Academic Press: San Diego, 1999, Vol. 73, p. 295.
4. Cartwright, M. W.; Parks, E. L.; Pattison, G.; Slater, R.; Sandford, G.; Wilson, I.; Yufit, D. S.; Howard J. A. K.; Christopher, J. A.; Miller, D. D. Tetrahedron 2010, 66, 3222.
5. Parks, E. L.; Sandford, G.; Yufit, D. S.; Howard, J. A. K.; Christopher, J. A.; Miller, D. D. J. Fluorine Chem. 2010, 131, 1086.