## Abstract A simple and efficient method for the preparation of triazolesulfonic acids (II) is presented.
Oxidation of 4-amino-5-aryl-4H-1,2,4-triazole-3-thiols
β Scribed by A. A. Shklyarenko; A. V. Moskvin; E. V. Fedorova
- Book ID
- 111465663
- Publisher
- SP MAIK Nauka/Interperiodica
- Year
- 2011
- Tongue
- English
- Weight
- 152 KB
- Volume
- 47
- Category
- Article
- ISSN
- 1070-4280
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π SIMILAR VOLUMES
In the molecule of the title compound, C 5 H 7 N 7 S, the essentially planar triazole ring and the 4-amino-5-mercapto-1,2,4-triazole moiety make a dihedral angle of 70.97 (5) . In the crystal structure, weak intermolecular N-HΓ Γ ΓN and N-HΓ Γ ΓS hydrogen bonds stabilize the packing.
The Schiff bases 3a-h obtained from 4-amino-1,2,4-triazol-3-ones 1a-h when subjected to Japp-Klingemann reaction yielded the corresponding 3-{2-[(2-aryl-5-methyl-3H-[1,2,4]-triazol-3-one-4-yl)]-iminophenyl}-pentane-2,4-diones 4 a-h. These diones on cyclisation with N 2 H 4 yielded the title compound