References

1. Chem. Rev. v.63 R. Filler
2. Bull. Korean Chem. Soc. v.7 K. Chung;S. Kim
3. J. Am. Chem. Soc. v.98 P. Muller;J. Perlberger
4. Bull. Chem. Soc. Japan v.34 J. Kawanami
5. Indian J. Chem. v.18B G. Goplakrishnam;B. R. Pai;N. Venkatasubramanian
6. Conformational Analysis E. L. Eliel;N. L. Allinger;S. J. Angyal;G. A. Morrison
7. J. Am. Chem. Soc. v.71 L. F. Fieser;S. Rajagopalan
8. Bull. Inst. Basic. Sci., Inha Univ. v.5 K. Chung;T. Chang;E. Yoon