1. Franck-Neumann, M.; Colson, P. J.; Geoffroy, P.; Taba, K. M. Tetrahedron Lett. 1992, 33, 1903; Franck-Neumann, M.; Bissinger, P.; Geoffroy, P. Tetrahedron Lett. 1997, 38, 4477, and references cited therein.
2. Clinton, N. A.; Lillya, C. P. J. Am. Chem. Soc. 1970, 92, 3058.
3. Narasaka, K.; Pai, F. C. Tetrahedron 1984, 40, 2233.
4. Macrolide Antibiotics; Omura, S., Ed.; Academic Press, 1984. Boeckman, R. K.; Goldstein Jr., S. W. The Total Synthesis of Natural Products; Apsimon, J., Ed. The total synthesis of macrocyclic lactones. John Wiley & Sons, 1988; Vol. 7, pp. 1–139.
5. The preparation of the complexes 1a, 1b, 1d and 1e has been described: Franck-Neumann, M.; Chemla, P.; Martina, D. Synlett 1990, 641; Franck-Neumann, M.; Geoffroy, P.; Winling, A. Tetrahedron Lett. 1995, 36, 8213. More convenient preparations of 1a–e, even in the optically active series, have since been achieved (Bissinger, P. PhD, Université Louis Pasteur de Strasbourg, 1996) and will be published in a forthcoming detailed paper: Franck-Neumann, M.; Bissinger, P.; Geoffroy, P. Tetrahedron: Asymmetry).