1. See for example; Parker, D. Chem. Rev. 1991, 91, 1441–1457; Hulst, R; Kellogg, R. M.; Feringa, B. L. Recl. Trav. Chim. Pays Bas. 1995, 114, 115 and references therein.
2. Vigneron, J. P.; Dhaenens, M; Horeau, A. Tetrahedron 1973, 29, 1055; Feringa, B. L.; Smaardijk, A; Wynberg, H. J. Am. Chem. Soc. 1985, 107, 4798.
3. See for example; Weisman, G. R. In Asymmetric Synthesis, Morrison, J. D., Ed.; Academic Press: New York, 1983; Vol. 1, Chapter 8, p. 153.