## Abstract The ^15^N NMR spectra of three __N__‐alkyl‐δ‐carbomethoxyvalerothiohydroxamic acids (**2**) and six synthesized __N__‐isopropylbenzothiohydroxamic acids (**3**) were measured and compared with appropriate spectra of structurally similar hydroxylamines (**1**), benzohydroxamic acids (**4
Qualitative Study of Substituent Effects on NMR 15 N and 17 O Chemical Shifts
✍ Scribed by Contreras, Rubén H.; Llorente, Tomás; Pagola, Gabriel I.; Bustamante, Manuel G.; Pasqualini, Enrique E.; Melo, Juan I.; Tormena, Cláudio F.
- Book ID
- 121192149
- Publisher
- American Chemical Society
- Year
- 2009
- Tongue
- English
- Weight
- 266 KB
- Volume
- 113
- Category
- Article
- ISSN
- 1089-5639
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📜 SIMILAR VOLUMES
## Abstract The synthesis and assignment of ^15^N and ^13^C NMR signals of the isoxazole ring in a series of __para__‐substituted 3‐phenyl derivatives are reported. DFT calculations of ^15^N and ^13^C chemical shifts are presented and compared to observed values. Substituent effects are interpreted
The 170, 15N and =C NMR chemical shifts have been determined for N,N-dimethylmethanesulphinamide (l), both as the neat liquid and in dimethyl sulphoxide, acetone, chloroform and various alcohols. The 0 and 15N nuclei of 1 resonate at a lower frequency than those of the corresponding sulphonamide, an