1. Y. Izumi and A. Tai: Stereo-differentiating Reactions, Chap. 4, Kodansha, Tokyo, and Academic Press, New York (1971).
2. R. K. Hanson: J. Am. Chem. Soc. 88, 2731 (1966).
3. V. Prelog: Helv. Chim. Acta 36, 1178 (1953).
4. 2. J. D. Morrison and H. S. Mosher: Asymmetric Organic Reactions, Prentice Hall, Engle- field Cliffs, N.J. (1971)
5. 3. Y. Izumi and A. Tai: Stereo-differentiating Reactions, Chap. 5, Kodansha, Tokyo, and Academic Press, New York (1971)