Studies on the synthesis and interconversion of isomeric triazolothienopyrimidines. Part III. Cyclization reactions of 2??amino??3??(1H??1, 2, 4??triazol??3??yl) thiophenes

CJ Shishoo, MB Devani, GV Ullas…

文献索引：Shishoo, C. J.; Devani, M. B.; Ullas, G. V.; Ananthan, S.; Bhadti, V. S. Journal of Heterocyclic Chemistry, 1987 , vol. 24, p. 1125 - 1131

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被引用次数: 11

摘要

Abstract Isolation of 2-amino-3-(1H-1, 2, 4-triazol-3-yl) thiophenes in the hydrolytic cleavage reactions of isomeric triazolothienopyrimidines is reported. The 2-amino-3- triazolylthiophenes on reaction with one carbon donors were found to cyclize to 1, 2, 4- triazolo [1, 5-c] thienopyrimidines, exclusively.