The attachment of an ester group at C-4 (1) and lactone bridges between C-6 and C-8 (1); C-2 and C-4, C-6 and C-8 (2); C-4 and C-6 (4) resulted in C-4, C-5 and C-6 showing similar chemical shifts in all three structures. In Diosbulbins A (1) and B (Z), C-12 bearing the equatorial furan ring is in an
13C chemical shifts and configurational studies of some aryl cyclopropyl sulphones
β Scribed by D. Bhaskar Reddy; T. Balaji
- Publisher
- John Wiley and Sons
- Year
- 1985
- Tongue
- English
- Weight
- 241 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract A chemical shift analysis of the ^13^C NMR spectra of more than 50 acyclic sulphonic acids, alkali metal sulphonates and methyl esters was carried out. Chemical shift increment systems with __n__βalkanes as reference molecules were established for linear alkanesulphonates and alkβ2βenes
## Abstract An extensive carbonβ13 nuclear magnetic resonance study of selected model olefins dissolved in deuteriochloroform has been carried out under standardized conditions. Assignments of the chemical shifts have been made. The influence of the nature of the solvent and the effect of changing
Thirty two-linked macrocycle models of natural ionophorus nactin antibiotics were studied by 13C NMR spectroscopy and their chemical shifts are reported.
The 1H and 13C NMR resonances of 19 tetracyclic acridinone derivatives were completely and unambiguously assigned by a combination of 1H-detected one-bond HMQC and long-range (two and three bonds) HMBC correlation experiments. 1H and 13C chemical shifts are also reported for the respective N -aryl b