References
- Vankar , Y. D. and Singh , S. P. Tet. Lett. , Submitted
- Suzuki , M. , Watanabe , A. and Noyori , R. 1980 . J. Am. Chem. Soc. , 102 : 2095
- Suzuki , M. , Oda , Y. and Noyori , R. 1979 . J. Am. Chem. Soc. , 101 : 1623
- Unpublished observation by us