References
- Behare , E. S. and Miller , R. B. 1970 . Chem. Comm. , : 402
- Miller , S. B. and Smith , B. F. 1973 . Synthetic Commun. , 3 : 129 ibid., in press
- Brandstrom , A. and Junggren , U. 1969 . Acta Chem. Scand. , 23 : 2203
- Satisfactory nuclear magnetic and infrared spectra and (b) elemental analysis and/or mass spectral data were obtained for these compounds