References and Notes
- Campbell , J. B. and Firor , J. W. 1995 . J. Org. Chem. , 60 : 0000
- The enaminones were prepared as described in reference 1 Typically the yields were 85–95% of the crude enaminones which were sufficiently pure for use in the cyclization reaction.
- Stowell , J. C. 1979 . Carbanions in Organic Synthesis , New York : John Wiley & Sons . Chap. 5.
- Examination of the seven-membered ring enaminone analog indicated an even closer approach of the reacting carbons than in the six-membered ring analogs.
- We expect that these arguments for variations in enaminone reactivity based upon ground state geometries will parallel those in the transition state leading to cyclization.
- Bare , T. M. , McLaren , C. D. , Campbell , J. B. , Firor , J. W. , Resch , J. F. , Walters , C. P. , Salama , A. I. , Meiners , B. A. and Patel , J. B. 1989 . J. Med. Chem. , 32 : 2561
- Gonzalez , C. , Greenhouse , R. , Tallabs , R. and Muchowski , J. M. 1983 . Can J. Chem. , 61 : 1697
- Still , W. C. , Kahn , M. and Mitra , A. 1978 . J. Org. Chem. , 43 : 2923