78893-12-6

Basic information

• Product Name: 1-(p-Nitro-phenyl)-3-(p-N,N-dimethylamino-phenyl)-1,2,4-triazolo<4,3-a>pyridiniumperchlorat
• Synonyms: 1-(p-Nitro-phenyl)-3-(p-N,N-dimethylamino-phenyl)-1,2,4-triazolo<4,3-a>pyridiniumperchlorat
• CAS NO: 78893-12-6
• Molecular Weight: 459.846
• Mol File: 78893-12-6.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: 1-(p-Nitro-phenyl)-3-(p-N,N-dimethylamino-phenyl)-1,2,4-triazolo<4,3-a>pyridiniumperchlorat(CAS DataBase Reference)
• NIST Chemistry Reference: 1-(p-Nitro-phenyl)-3-(p-N,N-dimethylamino-phenyl)-1,2,4-triazolo<4,3-a>pyridiniumperchlorat(78893-12-6)
• EPA Substance Registry System: 1-(p-Nitro-phenyl)-3-(p-N,N-dimethylamino-phenyl)-1,2,4-triazolo<4,3-a>pyridiniumperchlorat(78893-12-6)

Safety Data

• Hazardous Substances Data: 78893-12-6(Hazardous Substances Data)

Upstream product

• 110-86-1 pyridine 
• 3155-30-4 4-(N,N-dimethylamino)benzaldehyde 4-nitrophenylhydrazone 
• 107426-25-5 C₁₅H₁₄N₄O₂ 

Relevant articles and documents

Electrochemical Synthesis of Heterocyclic Compounds. 17. Anodic Oxidation of Hydrazones in the Presence of Heteroaromatic and Schiff Bases

Anodic oxidation of a series of hydrazones in the presence of heteroaromatic and Schiff bases were performed in acetonitrile-tetraethylammonium perchlorate electrolyte solution at platinum using controlled potentials.As a result of four-electron oxidation several s-triazolopyridinium perchlorates (1-9), s-triazoloquinolinium perchlorate (10), s-triazoloisoquinolinium perchlorate (11), and s-triazolobenzoquinolinium perchlorate (12) were obtained in yields ranging from 30percent to 90percent.As a result of two-electron oxidation of -p-nitrophenylhydrazine (A) in the presence of imidazole and 1,2,4-triazole the azo derivatives 13 and 14 were obtained with high yields.As a result of two-electron oxidation of hydrazone A in the presence of Schiff bases the new Schiff bases 15-20 were obtained in high yields.On the bases of the electroanalytical and preparative results it is concluded that the electrochemical oxidation of hydrazone A in the presence of heteroaromatic and Schiff bases occurs through the formation of cation B, which is attacked by base as a nucleophile.This excludes the possibility of annelation of the heteroaromatics through nitrilimine as an intermediate.

SYNTHESIS OF S-TRIAZOLOPYRIDINIUM SALTS BY ANODIC OXIDATION OF HYDRAZONES IN THE PRESENCE OF PYRIDINE

The anodic oxidation of some aldehyde hydrazones in the presence of pyridine was investigated.From the reaction mixture derivatives of s-triazolopyridinium salts were isolated in 45-80percent yield and identified.The mechanism of these transformatio