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Synthesis of 1,2,4-triazolo[3,4-b]-1,3,4-thiadiazepines and 4-amino-3-acylvinylthio-1,2,4-triazoles by reaction o acylacetylenes with 4-amino-3-mercapto-1,2,4-triazole

✍ Scribed by T. E. Glotova; A. S. Nakhmanovich; L. S. Romanenko; M. V. Sigalov

Publisher
Springer US
Year
1991
Tongue
English
Weight
289 KB
Volume
27
Category
Article
ISSN
0009-3122

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πŸ“œ SIMILAR VOLUMES

4-Amino-3-(1,2,4-triazol-1-yl)-1H-1,2,4-
4-Amino-3-(1,2,4-triazol-1-yl)-1H-1,2,4-triazole-5(4H)-thione
✍ Xu, Liang-Zhong ;Yu, Guan-Ping ;Xu, Feng-Ling ;Li, Wei-Hua πŸ“‚ Article πŸ“… 2005 πŸ› International Union of Crystallography 🌐 English βš– 230 KB

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-HÁ Á ÁN and N-HÁ Á ÁS hydrogen bonds stabilize the packing.

1,2,4-Triazoles. Improved synthesis of 5
1,2,4-Triazoles. Improved synthesis of 5-substituted 4-amino-3-mer-cato-(4H)-1,2,4-triazoles and a facile route to 3,6-disubstituted 1,2,4-triazolo[3,4-b][1,3,4]thiadiazoles
✍ Francesco Paolo Invidiata; Giancarlo FurnΓ‘; Ilaria Lampronti; Daniele Simoni πŸ“‚ Article πŸ“… 1997 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 243 KB

## Abstract The reaction of thiocarbohydrazide with carboxylic acids at the melting temperature allows an improved preparation of the S‐substituted 4‐amino‐3‐mercapto‐1,2,4‐triazole heterocycles. The crude 4‐amino‐5‐mercapto‐1,2,4‐triazoles react easily with carboxylic acids or carboxylic acid chlo