Conformational Study of N-Nitroso-2,6-diphenylpiperidines and N-Nitroso-2,6-diphenylpiperidin-4-ones by Molecular Mechanics Calculations, X-ray Crystallography, and 1H and 13C NMR Spectroscopy
β Scribed by Gdaniec, Maria; Milewska, Maria J.; Po-lonski, Tadeusz
- Book ID
- 126901581
- Publisher
- American Chemical Society
- Year
- 1995
- Tongue
- English
- Weight
- 959 KB
- Volume
- 60
- Category
- Article
- ISSN
- 0022-3263
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π SIMILAR VOLUMES
1 H, 13 C NMR spectroscopy and DFT/B3LYP calculations were applied to investigate the conformational preferences of the ethoxycarbonyl and acyloxy groups of some a-acyloxyesters derived from (G) ethyl 3-hydroxy-1-azabicyclo[2.2.2]octane-3-carboxylate. The crystal structure of (G) ethyl 3-diphenylace
Several 6-methyl-9-carbamoyltetrahydro-4H-pyrido[l,2-a]pyrimid~-4-ones have been prepared using phosgene iminium chloride. These compounds can exist in equilibrium as the cis (3A) imine$(3B) enaminee trans (3C) imine. 'H, 13C and "N NMR prove that the cis-and trans-imine isomers are predominant in t