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Ю. И. Нейн, Ю. Ю. Моржерин
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4-Carbamoyl-3-cyanomethyl-1,2,3-triazolium-5-olates were shown to cyclize when treated with sodium ethoxide giving zwitterionic 6-amino-4-oxo-4,5-dihydro-2Н‑1,2,3-triazolo[1,5-а]pyrazinium-3-olates. In contrast to 4-carbamoyl-3‑cyanomethyl-1,2,3-triazolium-5-olates, 4-carbamoyl-3‑phenacyl-1,2,3-triazolium-5‑olates cyclized only by the action of phosphoric acid.

How to Cite
Nein, Yu. I.; Morzherin, Yu. Yu. Chem. Heterocycl. Compd. 2014, 50, 1021. [Khim. Geterotsikl. Soedin. 2014, 1107.]

For this article in the English edition see DOI 10.1007/s10593-014-1558-4


condensed ring systems; mesoionic heterocycles; 1,2,3-triazoles; cyclization

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