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Cyclization of isothiosemicarbazones. 5. [1,2,4]Triazolo[1,5-c]pyrimidines

✍ Scribed by Yamazaki, Chiji

Book ID
121403214
Publisher
American Chemical Society
Year
1981
Tongue
English
Weight
600 KB
Volume
46
Category
Article
ISSN
0022-3263

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## Abstract Some new 1,2,3‐triazolo[4,5‐__e__]‐1,2,4‐triazolo[3,4‐__c__]pyrimidmes were prepared starting from the corresponding 1,2,3‐triazolo[4,5‐__d__]pyrimidines __via__ the formation of the 1,2,4‐triazole ring. Thus suitable hydrazino derivatives 6 were condensed with triethyl orthoformate, tr