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Synthesis of 1,2,4-triazolo[4,3-c]-, tetrazolo[1,5-c]-, and 1,2,4-triazino[5,6-c]pyrano[4'3':4,5]pyrrolo-[3,2-e]pyrimidine derivatives

✍ Scribed by E. G. Paronikyan; A. S. Noravyan

Publisher
Springer US
Year
1995
Tongue
English
Weight
302 KB
Volume
31
Category
Article
ISSN
0009-3122

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Synthesis of New 2-Substituted-pyrazolo[4',3':5,6]pyrano[3,2e][1,2,4]triazolo [1,5-c]pyrimidine Derivatives. -Starting from pyrazole (III) the pyrimidine (V) is prepared which is further treated with different carboxylic acid derivatives to form novel pyrimidines of type (VI) and (VIII). Preparatio