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Synthesis of novel 3-(α-arylhydrazono-1,3,4-oxadiazol-2-ylmethyl)-2-oxo-1,2-dihydroquinoxalines and their characteristic tautomerism between the hydrazone imine and diazenyl enamine forms

✍ Scribed by Yoshihisa Kurasawa; Muneto Muramatsu; Yoshihisa Okamoto; Atsushi Takada

Book ID
112128206
Publisher
Journal of Heterocyclic Chemistry
Year
1986
Tongue
English
Weight
223 KB
Volume
23
Category
Article
ISSN
0022-152X

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13C-NMR study on the tautomerism of 3-(a
13C-NMR study on the tautomerism of 3-(arylhydrazono)methyl-2-oxo-1,2-dihydroquinoxalines between the hydrazone imine and diazenylenamine forms
✍ Yoshihisa Kurasawa; Akiko Takano; Kyoko Kato; Ho Sik Kim; Yoshihisa Okamoto 📂 Article 📅 1997 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 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