References
- Harvey , R. G. 1970 . Synthesis , : 161
- Birch , A. J. and Subba Rao , G. 1972 . “Advance in organic chemistry, methods and results” , Edited by: Taylor , E. C. Vol 8 , 1 – 65 . New York : Wiley-Interscience Publishers .
- Bachi , M. D. , Epstein , J. W. , Herzberg-Minzil , Y. and Loewentahl , H. J. E. 1969 . J. Org. Chem. , 34 : 126
- van Bekkum , H. , van den Bosch , C. B. , van Minnen-Pathuis , G. , de Mos , J. C. and van Wijk , A. M. 1971 . Rec. Trav. Chim. , 90 : 137
- Saha , N. N. , Bagchi , P. N. and Dutta , P. C. 1955 . J. Am. Chem. Soc. , 77 : 3408
- Piers , E. and Grierson , J. R. 1977 . J. Org. Chem. , 42 : 3755
- Casares , A. , Cardoso , J. M. L. and Maldonado , L. A. 1981 . Synth. Commun. , 11 : 223
- In this paper we will refer only to the identification of the base responsible for the alkylation at C-4 and hope to submit in other paper our experiments leading to the identification of the plyanion species involved
- Peak area at δ 4.70 (A) = 3/5 diethyl product (3); therefore, (3) = 5/3 A. Peak area at δ 4.55 (B) = monoethyl product (2) + 2/5 diethyl product (3); therefore, (2) = B -2/5(5/3) A = B - 2/3 A
- Kuehne , M. E. and Lambert , B. F. 1959 . J. Am. Chem. Soc. , 81 : 4278
- Beverloo , A. , Dieleman , M. C. , Verkade , P. E. , De Vries , K. S. and Wepster , B. M. 1962 . Rec. Trav. Chim. , 81 : 1033
- Jacobus , J. and Eastham , J. F. 1969 . Chem. Commun. , : 138