REFERENCES
- Adkins , H. and Thompson , Q. E. 1949 . J. Am. Chem. Soc. , 71 : 2242
- Tayo , E. C. , McLay , G. W. and McKillop , A. 1968 . J. Am. Chem. Soc. , 90 : 2422
- Wallace , J. M. and Copenhaver , J. E. 1941 . J. Am. Chem. Soc. , 63 : 699
- Rammer , D. H. and Khorana , H. G. 1963 . J. Am. Chem. Soc. , 85 : 1997
- Liesen , G. P. and Sukenik , C. N. 1987 . J. Org. Chem. , 52 : 455
- Roulleau , F. , Plusquellec , D. and Brown , E. 1983 . Tetrahedron Lett. , 24 ( 39 ) : 4195
- Plusquellec , D. , Roulleau , F. , Lefeuvre , M. and Brown , E. 1988 . Tetrahedron. , 44 ( 9 ) : 2471
- Buckingham , J. 1982 . Dectionary of Organic Compounds, , 5th ed , New York, London, Toronto : Champman and Hall .