Cram's Rule of Asymmetric Induction.
D. J. Cram, A. Elhafez, J. Am. Chem. Soc. 74, 5828 (1952)
Cram, Kopecky,
J. Am. Chem. Soc. 81, 2748 (1959)
Stocker et al., ibid. 82, 3913
(1960)
Reviews. Gould Mechanism and Structure in Organic Chemistry (New York,
1959), p 551
Eliel et al., Conformational Analysis (New York, 1965), p 32.
2748 (1959);.