oxamic acid thiohydrazides
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Iodine-promoted synthesis of pyrazoles from 1,3-dicarbonyl compounds and oxamic acid thiohydrazides

2020 ◽  
Vol 7 (13) ◽  
pp. 1640-1646
Author(s):  
Anna S. Komendantova ◽  
Konstantin A. Lyssenko ◽  
Igor V. Zavarzin ◽  
Yulia A. Volkova
Keyword(s):  
Dicarbonyl Compounds ◽  
Ring Contraction ◽  
Novel Approach ◽  
Oxamic Acid Thiohydrazides ◽  
Ring Contraction Reaction ◽  
Substituted Pyrazoles

A novel approach to 3,4-dicarbonyl-substituted pyrazoles from 1,3-dicarbonyl compounds and oxamic acid thiohydrazides was developed via iodine-promoted cascade imination/halogenation/cyclization/ring contraction reaction.

Reactions of hydrazones derived from oxamic acid thiohydrazides

2016 ◽  
Vol 192 (2) ◽  
pp. 237-240 ◽  
Author(s):  
Yulia A. Volkova ◽  
Elena I. Chernoburova ◽  
Albina S. Petrova ◽  
Alexander A. Shtil ◽  
Igor V. Zavarzin
Keyword(s):  
Oxamic Acid Thiohydrazides

Synthesis of 4,5-Dihydro-1,3,4-thiadiazole-2-carboxamide and 2-Carbamoyl-4,5-dihydro-1,3,4-thiadiazole 1-Oxide Derivatives Based on Hydrazones of Oxamic Acid Thiohydrazides.

ChemInform ◽  
2004 ◽  
Vol 35 (42) ◽  
Author(s):  
V. N. Yarovenko ◽  
A. V. Shirokov ◽  
I. V. Zavarzin ◽  
O. N. Krupinova ◽  
A. V. Ignatenko ◽  
...  
Keyword(s):  
Oxamic Acid Thiohydrazides

Synthesis of 4,5-Dihydro-1,3,4-thiadiazole-2-carboxamide and 2-Carbamoyl-4,5-dihydro-1,3,4-thiadiazole 1-Oxide Derivatives Based on Hydrazones of Oxamic Acid Thiohydrazides

2003 ◽  
Vol 39 (12) ◽  
pp. 1633-1639 ◽  
Author(s):  
V. N. Yarovenko ◽  
A. V. Shirokov ◽  
I. V. Zavarzin ◽  
O. N. Krupinova ◽  
A. V. Ignatenko ◽  
...  
Keyword(s):  
Oxamic Acid Thiohydrazides
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