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Tautomeric behavior of 3-(arylhydrazono)methyl-2-oxo-1,2-dihydroquinoxalines between the hydrazone imine and diazenyl enamine forms in acidic media. Solvent and substituent effects

✍ Scribed by Yoshihisa Kurasawa; Tomoyoshi Hosaka; Atsushi Takada; Ho Sik Kim; Yoshihisa Okamoto


Book ID
112131201
Publisher
Journal of Heterocyclic Chemistry
Year
1995
Tongue
English
Weight
259 KB
Volume
32
Category
Article
ISSN
0022-152X

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13C-NMR study on the tautomerism of 3-(a
✍ Yoshihisa Kurasawa; Akiko Takano; Kyoko Kato; Ho Sik Kim; Yoshihisa Okamoto πŸ“‚ Article πŸ“… 1997 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 232 KB

## Abstract The ^13^C‐nmr study was carried out for the tautomerism of the 3‐(arylhydrazono)methyl‐2‐oxo‐1,2‐dihy‐droquinoxalines 1a‐g and 2a‐e between the hydrazone imine A and diazenylenamine B forms, providing the carbon chemical shifts for the tautomers A and B of compounds 1a‐g and 2a‐e. The c