NMR spectroscopic investigations with isatin guanylhydrazones
✍ Scribed by Wolfgang Holzer; Zoltan Györgydeák
- Book ID
- 112131523
- Publisher
- Journal of Heterocyclic Chemistry
- Year
- 1996
- Tongue
- English
- Weight
- 486 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0022-152X
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
An early explanation given by Hufner [lo] had to be abandoned in the light of new NMR experiments [12]. UV Extrapolations [Y] suggest AH' = -6.5 kcal.mol-l and ASo = -22 eu for the process Ic --t lc'. Similarly, Roche e f ul. [Ill determined AH"= -6.9 kcal mol-' and AS" = -30 eu for the equilibrium
## Abstract The synthesis of __o__‐nitrosobenzoic acid 2 has been known for more than 100 years, and the photochemical preparation from __o__‐nitrobenzaldehyde 1 became a textbook example for [1,5]‐hydrogen shifts. However, neither the ^1^H–NMR spectra nor the ^13^C{^1^H}–NMR of this compound have