References
- T. Yokota, J. Baba and N. Takahashi, Tetrahedron Lett., 23, 4965 (1982).
- (a) S. Takatsuto and N. Ikekawa, Tetrahedron Lett., 24, 773 (1983); (b) K. Mori, M. Sakakibara and K. Okada, Tetrahedron, 40, 1767 (1984).
- S. Takatsuto and N. Ikekawa, Chem. Pharm. Bull., 32, 2001 (1984).
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- M. Anastasia, P. Allevi, P. Ciuffreda and A. Oleotti, Steroids, 45, 561 (1985). Related isomerization has been reported in the literature: M. Aburatani, T. Takeuchi and K. Mori, Synthesis, 1987, 181 and references cited therein.
- V. VanRheenen, R. G. Kelly and D. Y. Cha, Tetrahedron Lett., 1976, 1973.
- K. B. Sharpless and R. F. Lauer, J. Am. Chem. Soc., 95, 2697 (1973).
- S. Terao, M. Shiraishi and K. Kato, Synthesis, 1979, 467.