Long-range protoncarbon-13 coupling constants of monosaccharides by selective heteronuclear 2D-J NMR spectroscopy
✍ Scribed by Claude Morat; François R. Taravel; Michel R. Vignon
- Publisher
- John Wiley and Sons
- Year
- 1988
- Tongue
- English
- Weight
- 494 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0749-1581
No coin nor oath required. For personal study only.
✦ Synopsis
Long-range J(CH) values were measured for six glycoside derivatives by a selective 2D-J heteronuclear sequence. The values obtained are discussed in terms of conformational effects and constitute a valuable contribution to ' 5 and 3J comprehension.
📜 SIMILAR VOLUMES
## Abstract Known selective 2D J‐resolved methods for the determination of long‐range proton–carbon coupling constants, ^n^__J__(C, H), have been modified and improved by introducing an INEPT or refocused INEPT sequence as a preparation period in the Bax–Freeman selective spin–flip method, or using
## Abstract Two‐dimensional H,C‐COSY spectra of some vinyltin(IV) compounds were measured. The relative signs of __^n^J__(^119^Sn, ^13^C) and __^(n+1)^____J__(^119^Sn, ^1^H) coupling constants were determined after analysis of the orientation of appropriate ^119/117^Sn satellites in H,C‐COSY spectr
Chiral synthons containing either 13Cor 15N-labelled glycine were prepared. The 13C and 15N NMR spectra of the Ni(II) complex of the Schi † base of (S)-2-(N-benzylprolyl)aminobenzophenone and 13C-1-, 13C-2or 15N-labelled glycine were measured and assigned. The observed splitting of the carbon signal