Pyrazolo[5,1-c]-1,2,4-tiazoles from 1,2,4-Triazolium Salts and Substituted Acetonitriles
- 1 January 1985
- journal article
- research article
- Published by CLOCKSS Archive in HETEROCYCLES
- Vol. 23 (3) , 641-648
- https://doi.org/10.3987/r-1985-03-0641
Abstract
3-Substituted 4-amino-1-methyl-5-methylthio-1,2,4-triazolium salts react with acetonitriles activated by another electron-delocalizing group to give enamines which undergo cyclization by action of HCl to give pyrazolo [5,1-c]-1,2,4-triazole derivatives.Keywords
This publication has 2 references indexed in Scilit:
- Fused mesoionic heterocycles: synthesis of 1,3,4-triazolo[3,2-a]pyridine derivativesJournal of the Chemical Society, Perkin Transactions 1, 1984
- Reactions with heterocyclic diazonium salts: New routes for the synthesis of pyrazolo[1,5‐c]‐1,2,4‐triazoles and pyrazolo[1,5‐c]‐as‐triazinesJournal of Heterocyclic Chemistry, 1977