## Abstract ^15^N NMR data for a series of 12 __para__‐substituted benzamidoximes and benzamidinium salts were determined in dimethyl sulfoxide. For the amino group of benzamidoximes ^1^__J__(N,H) coupling constants were determined using polarization transfer techniques; the other ^15^N atoms were
Benzamidoximes. II. A 15N NMR study
✍ Scribed by Lécia P.F. de Morais; Fernando Hallwass; I. Malvestiti; Rajendra M. Srivastava
- Book ID
- 103837221
- Publisher
- Elsevier Science
- Year
- 2006
- Tongue
- English
- Weight
- 90 KB
- Volume
- 782
- Category
- Article
- ISSN
- 0022-2860
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
N NMR spectroscopy was used to extend previous studies, by "C NMR and IR spectroscopy, of fused oxoheterocycles which contain the guanidine unit. These compounds fall into three clearly definable structural types, through-conjugated, ring-conjugated or imide-like, any or all of which may result from
## Abstract A natural abundance ^15^N NMR study was carried out on a series of 1‐ and 2‐mono‐ and 1,5‐ and 2,5‐disubstituted tetrazoles in different media. An erroneous assignment given in the literature for 2,5‐disubstituted tetrazoles was corrected using MNDO molecular orbital calculations and th
3 NMR data are reported for 42 szoles, taken mostly at a standard concentration and in a common solvent (0.5 M dimethyl sulfoxide with a 0.01 M increment of Cr(acac), for each nitrogen atom present). Signal assignments were assisted by comparison witb ' " N line widths, the use of zJ(15N'H) coupling
15N NMR chemical shifts of 40 tertiary and quaternary isoquinoline alkaloids of six constitutional types are reported. The selected compounds belong to the classes of benzo[c]phenanthridine, protoberberine, benzylisoquinoline, aporphine, pavinane, and b-carboline-proaporphine alkaloids. The 15N chem