## Abstract Following earlier studies on the development of one‐ and two‐dimensional NMR methods based on selection of coherences via maximum‐quantum pathways and using inverse ^1^H detection, a pulse sequence is now described for analogous direct heteronuclear detection for use in laboratories whi
σH-Adducts ofN-alkylpyrazinium and quinoxalinium salts with nucleophiles. The1H and13C NMR spectra and the crystal structures of P-adducts
✍ Scribed by E. V. Verbitskiy; M. V. Berezin; P. A. Slepukhin; G. L. Rusinov; V. N. Charushin
- Publisher
- Springer
- Year
- 2009
- Tongue
- English
- Weight
- 345 KB
- Volume
- 58
- Category
- Article
- ISSN
- 1573-9171
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Analysis of the 'H-'H NOE effects observed for S-(11,13-dihydroalantolacton-13-yl)-~-cysteinyl-~-alanine methyl ester in (CD3),S0 at 14 T showed that the 7-and ll-protons are in cis positions. The distances between 7-, 8-and ll-protons of the adduct were derived by a semi-quantitative approach
The 2D NOESY method was used to determine the E/Z configuration and s-cis/s-trans conformation in a series of 3acylmethylene-2,2,3-trisubstituted-2,3-dihydrofurans. The assignments of 1 H and 13 C NMR chemical shifts and J 13 C, 1 H) coupling constants are presented.