References
- All the new compounds mentioned in this communication afforded satisfactory elemental analyses
- Hoogsteen , K. and Trenner , N. R. 1970 . J. Org. Chem. , 35 : 521
- Horso , J. E. and Schiessler , R. W. 1961 . Org. Syn. , 41 : 53
- The ir spectra were run on a Beckman IR-8-spectrophotometer
- The car spectra were obtained with a Varian HA-100 instrument using COCl3 as solvent and TMS as internal standard
- Sleep , G. 1969 . Agol. Spectroscopy , 2 : 263