Synthesis of 3-Aryl-3,6-dihydro-7<i>H</i>-[1,2,3]triazolo[4,5-<i>d</i>]pyrimidine-7-thiones as Building Blocks for Potentially Biologically Active Compounds
作者:Nazariy T. Pokhodylo、Vasyl S. Matiychuk、Mykola D. Obushak
DOI:10.1080/10426500902849573
日期:2010.2.23
[1,2,3]Triazolo[4,5-d]pyrimidine-7-thiones as buildingblocks for potentially biologicallyactivecompounds were synthesized by the base-catalyzed cyclization of 2-cyanoethanethioamide with arylazides and further reaction of the cyclization products with triethyl orthoformate.
The Dimroth rearrangement of 5-amino-1-aryl-1,2,3-triazole-4-carbothioamides
作者:Vladimir G. Ilkin、Lidiya N. Dianova、Vasiliy A. Bakulev、Vera S. Berseneva、Dmitry A. Saveliev、Tetyana V. Beryozkina
DOI:10.1007/s10593-020-02819-w
日期:2020.10
The rearrangement of 5-amino-1-aryl-1,2,3-triazole-4-carbothioamides was investigated. The process was optimized by varying the solvent, temperature, and the type of base. The optimal reaction conditions were found, and new 1-unsubstituted 5-arylamino-1,2,3-triazole-4-carbothioamides were synthesized. It has been shown that 1-aryl-1,2,3-triazoles containing a nitro group in the para position undergo