PROCESS FOR THE PREPARATION OF 5-ARYL-2,4-DIALKYL-3H-1,2,4-TRIAZOLE-3-THIONES

摘要

5-Aryl-2,4-dialkyl-3H-1,2,4-triazole-3-thiones of formula (I) wherein R ishalogen, alkyl or alkoxy, n is 1 or 2 and R2 and R3 are alkyl are prepared bymixing a dialkyl-thiosemicarbazide 1 with a base and reacting the mixture witha benzoyl chloride 2.