Tautomerism in the Solid State and in Solution of a Series of 6-Aminofulvene-1-aldimines
✍ Scribed by Sanz, Dionisia; Pérez-Torralba, Marta; Alarcón, Sergio Hugo; Claramunt, Rosa María; Foces-Foces, Concepción; Elguero, José
- Book ID
- 120579641
- Publisher
- American Chemical Society
- Year
- 2002
- Tongue
- English
- Weight
- 188 KB
- Volume
- 67
- Category
- Article
- ISSN
- 0022-3263
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Some hydroxyquinoline carboxylic acids and their conjugate acids and bases were characterized by 13 C and 15 N NMR spectroscopy in solution and in the solid state. Differences in 13 C and, in particular, 15 N chemical shift patterns allow to distinguish between individual tautomers and confirm the p
## Abstract The X‐ray crystal structure of 1__H__‐pyrazole‐3‐(__N‐tert__‐butyl)‐carboxamide was determined. In the solid state, the ^13^C and ^15^N CP/MAS NMR spectra correspond to this tautomer. In solution, both tautomers are present in a ratio that depends on the temperature (at 293 K, 90% 3‐sub