Synthesis of 4-(pyrazol-5-yl)-1,2,4-triazole-3-thiones

被引：27
|
作者：
Vicentini, CB [1 ]
Manfrini, M [1 ]
Veronese, AC [1 ]
Guarneri, M [1 ]
机构：
[1] Univ Ferrara, Dipartimento Sci Farmaceut, I-44100 Ferrara, Italy
来源：
JOURNAL OF HETEROCYCLIC CHEMISTRY | 1998年 / 35卷 / 01期
关键词：
D O I：
10.1002/jhet.5570350106
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Condensation of pyrazolyl isothiocyanates 2 with N-substituted hydrazines provided the 2-methyl/phenyl-4-(pyrazol-5-yl)thiosemicarbazides 3. Cyclization of 3 with formic acid-acetic anhydride or with triethyl orthoacetate-acetic anhydride provided 4-(pyrazol-5-yl)-1,2,4-triazole-3-thiones 4a-f and 5-methyl-4-(pyrazol-5-yl)-1,2,4-triazole-3-thiones 4g-1 respectively.
引用
收藏
页码：29 / 32
页数：4
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