The microwave-assisted dehydrative cyclization of thiosemicarbazides forming substituted 1, 2, 4-triazoles

K Zamani, S Bagheri

文献索引：Zamani, Khosrow; Bagheri, Shirindokht Phosphorus, Sulfur and Silicon and the Related Elements, 2006 , vol. 181, # 8 p. 1913 - 1918

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被引用次数: 4

摘要

Different types of 4, 5-disubstituted 1, 2, 4-triazole-3-thiones were prepared by microwave irradiation as well as by a classical method. The beneficial effect of microwave irradiation on the dehydrative cyclization of thiosemicarbazides in different reaction media is described. Our results show that the effect of microwave irradiation on the reaction studied was the shortening of reaction times (from 2–9 h to 2–4 min) and a minor decrease (1–4%) in ...