S-alkylthiosemicarbazonium salts in the synthesis of 1,2,4-triazolines. Molecular structure of 1,4-diacetyl-3-(5-nitrofurfurylthio)-5-(2-furyl)-δ2-1,2,4-triazoline

Acylation of S-alkylthiosemicarbazonium salts with acetic anhydride leads to the formation of 1,4-diacetyl-²-1,2,4-triazolines. It was also demonstrated, based on x-ray structural analysis, that the triazoline ring in the molecular structure of 1,4-diacetyl-3-(5-nitrofurfurylthio)-5-(2-furyl)-²-1,2,4-triazoline exists in an envelope or bent conformation.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 931–937, July, 1990.