13C NMR spectra and structure of mono-, di- and trimethoxyphenylethylamines and amphetamines
โ Scribed by Keith Bailey; Donald Legault
- Publisher
- John Wiley and Sons
- Year
- 1983
- Tongue
- English
- Weight
- 661 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0749-1581
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The structural elucidation of 24 xanthones with di โ erent substitution patterns was performed by spectroscopic methods, namely 2D NMR techniques, such as correlation spectroscopy (COSY), nuclear Overhauser e โ ect (NOE), heteronuclear correlation (HETCOR) and a 1D NMR technique, selective insensitive
Table 4. Predicted and observed" aryl carbon shieldings relative to benzene for the 4-substituted phenylsulphonyl moiety in cis-and trans-l-arylsulphonyl-2-~lcy~opropanes shielding (pprn) Compound cis trans No. C-1' C-2 and C-6' C-3' and C-5' C-4' C-1' C-2 and C 6 ' C-3' and C-5' C-4' Carbon-13 NMR
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