41214-53-3

Upstream product

• 21945-40-4 2-[(2E)-2-benzylidenehydrazinyl]pyridine 
• 75-05-8 acetonitrile 
• 109-09-1 2-chloropyridine 
• 613-94-5 benzoic acid hydrazide 
• 4930-98-7 pyrid-2-ylhydrazine 
• 98-88-4 benzoyl chloride 

Downstream Products

• 778-65-4 3-phenyl-[1,2,4]triazolo[4,3-a]pyridine 
• 27182-36-1 5-phenyl-3-pyridin-2-yl-3H-[1,3,4]oxadiazol-2-one 
• 27217-51-2 2-(2-oxo-5-phenyl-2λ⁴-[1,2,3,4]oxathiadiazol-3-yl)-pyridine 
• 1515830-15-5 N′-(2-nitrophenyl)-N′-(pyrid-2-yl)benzohydrazide 
• 1515830-62-2 3-(phenyl)-1-(pyrid-2-yl)-1,4-dihydrobenzo[e][1,2,4]-triazin-4-yl 

Relevant academic research and scientific papers

Palladium-catalyzed chemoselective monoarylation of hydrazides for the synthesis of [1,2,4]Triazolo[4,3-a]pyridines

(Chemical Equation Presented) An efficient and convenient method for the synthesis of [1,2,4]triazolo[4,3-a]pyridines was exemplified by the synthesis of 20 analogues bearing a variety of substituents at the 3-position. The methodology involves a palladiu

Electrochemical Synthesis of Heterocyclic Compounds. XV. Anodic Synthesis of s-Triazolopyridine Derivatives

Anodic oxidation of several heterocyclic hydrazones (1a - 9a) prepared from 2-hydrazinopyridine of 2-hydrazino-4-nitropyridine and the corresponding aromatic aldehyde was performed in a CH3CN-Et4NClO4 solution with the addition of 60percent HClO4 on a platinum electrode, using controlled potentials.As a result of two-electron oxidative cyclizations, several s-triazolopyridine derivatives (1b - 9b) were prepared in yields ranging from 55 to 92percent.A mechanism rationalizing the formation of the 3-phenyl-s-triazolopyridine, 1b, has been studied by LSV, CPSV, RDE, coulometry and preparative scale electrolysis.