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New method of synthesis of 3,5,6,7-tetrahydro-[1,2,4]triazolo[1,5-a]pyrimidine-2(1H)-thione

✍ Scribed by Fizer, M. M.; Slivka, M. V.; Lendel, V. G.

Book ID: 121333533
Publisher: Springer US
Year: 2013
Tongue: English
Weight: 350 KB
Volume: 49
Category: Article
ISSN: 0009-3122
DOI: 10.1007/s10593-013-1369-z

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## Abstract magnified image The 7‐aryl‐4,7‐dihydro[1,2,4]triazolo[1,5‐__a__]pyrimidines **1a**, **1b**, **1c** can undergo addition of hydrazine to the enamine double bond leading to hydrazine derivatives of tetrahydrotriazolopyrimidines **2a**, **2b**, **2c**; the process is usually accompanied by