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Report | Regular issue | Vol 23, No. 3, 1985, pp.641-648
Published online, 1st January, 1970
DOI: 10.3987/R-1985-03-0641
■ Pyrazolo[5,1-c]-1,2,4-tiazoles from 1,2,4-Triazolium Salts and Substituted Acetonitriles

Pedro Molina,* Mateo Alajarín, and María-Jesús Vilaplana

*Departmento de Química Orgánica, Facultad de Ciencias, Universidad de Murcia, 30071 Murcia, Spain

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 hydrogen chloride to give pyrazolo[5,1-c]-1,2,4-triazole derivatives.