A one-pot synthesis of 4, 5-disubstituted-1, 2, 4-triazole-3-thiones on solid support under microwave irradiation

S Rostamizadeh, K Mollahoseini…

Index: Rostamizadeh, Shahnaz; Mollahoseini, Kambiz; Moghadasi, Samar Phosphorus, Sulfur and Silicon and the Related Elements, 2006 , vol. 181, # 8 p. 1839 - 1845

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Citation Number: 10

Abstract

4, 5-Di-substituted-1, 2, 4-triazole-3-thiones (4a–f) have been prepared in one stage from the reaction of acid hydrazide 1 with alkyl or aryl isothiocyanate 2 in the presence of a KOH (10%) solution on the surface of silica gel as well as on the surface of montmorillonite K10 under microwave irradiation. These triazoles have also been prepared from the reaction of 4- substituted-1-aroyl thiosemicarbazides 3a–e, with a KOH (10%) solution on the surface of ...

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