64017-21-6

Basic information

• Product Name: 1H-1,2,4-Triazole, 1-methyl-3,5-diphenyl-
• Synonyms: 1-methyl-3,5-diphenyl-4H-1,2,4-triazole;1-Methyl-3,5-diphenyl-1,2,4-triazol;3,5-diphenyl-1-methyl-1,2,4-triazole;3,5-diphenyl-1-methyl-1H-1,2,4-triazole;HMS2208C24;1-methyl-3,5-diphenyl-1H-1,2,4-triazole;3,5-diphenyl-1-methyl-1,2,4-1H-triazole;1H-1,2,4-Triazole,1-methyl-3,5-diphenyl
• CAS NO: 64017-21-6
• Molecular Formula: C15H13N3
• Molecular Weight: 235.288
• Mol File: 64017-21-6.mol
• Article Data: 18

Chemical Properties

• Melting Point: 84 °C
• Boiling Point: 429.8±28.0 °C(Predicted)
• Density: 1.13±0.1 g/cm3(Predicted)
• CAS DataBase Reference: 1H-1,2,4-Triazole, 1-methyl-3,5-diphenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 1H-1,2,4-Triazole, 1-methyl-3,5-diphenyl-(64017-21-6)
• EPA Substance Registry System: 1H-1,2,4-Triazole, 1-methyl-3,5-diphenyl-(64017-21-6)

Safety Data

• Hazardous Substances Data: 64017-21-6(Hazardous Substances Data)

Upstream product

• 2039-06-7 3,5-diphenyl-1,2,4-triazole 
• 80-48-8 methyl p-toluene sulfonate 
• 95642-87-8 Benzoic Acid 1-Benzylidene-2-methylhydrazidoimine 
• 888-71-1 3,5-diphenyl-1,2,4-oxadiazole 
• 74-89-5 methylamine 
• 451-40-1 phenyl benzyl ketone 
• 53721-21-4 diethyl 3,5-diphenyl-1H-1,2,4-triazole-1,2(3H)-dicarboxylate 
• 16483-98-0 2,3-diphenyl-2H-azirine 
• 952-06-7 deoxybenzoin oxime 
• 614-28-8 N-benzoylbenzamide 
• 302-15-8 methylhydrazine sulfuric acid 
• 100-47-0 benzonitrile 
• 1075-70-3 benzaldehyde N,N-dimethylhydrazone 
• 93-58-3 benzoic acid methyl ester 

Relevant articles and documents

Synthesis of multi-substituted 1,2,4-triazoles utilising the ambiphilic reactivity of hydrazones

The synthesis of N-alkyl-1H-1,2,4-triazoles from N,N-dialkylhydrazones and nitriles via formal [3+2] cycloaddition including the C-chlorination/nucleophilic addition/cyclisation/dealkylation sequence was developed. This sequential reaction utilising the in situ generation of hydrazonoyl chloride based on the ambiphilic reactivity of hydrazones afforded a variety of multi-substituted N-alkyl-triazoles in high yields. The synthetic utility of multi-substituted triazoles was also demonstrated by further transformations.

Visible light-induced cyclization reactions for the synthesis of 1,2,4-triazolines and 1,2,4-triazoles

A novel method for concisely synthesizing 1,2,4-triazolines via [3+2] cyclization under visible light is reported. These compounds can be easily converted into 1,2,4-triazoles under basic or photoredox conditions. The application of the 1,2,4-triazoles was also investigated via mild operations.

Photoinduced molecular rearrangements. The photochemistry of some 1,2,4-oxadiazoles in the presence of nitrogen nucleophiles. Formation of 1,2,4-triazoles, indazoles, and benzimidazoles

The photochemistry of some 3,5-disubstituted 1,2,4-oxadiazoles in the presence of nitrogen nucleophiles [external, such as added amines or hydrazines, or internal, such as an o-aminophenyl moiety at C(3) of the oxadiazole ring] has been investigated. In the irradiation of 5-amino-(or 5-N-substituted amino) 3-phenyl-1,2,4-oxadiazoles in the presence of aliphatic primary amines (or ammonia), photolytic species arising from heterolytic cleavage of the ring O-N bond capture the nucleophilic reagent to give open-chain intermediates, which develop into 1,2,4-triazolin-5-ones. Similarly, irradiations of 3,5-diphenyl-, 3-methoxy-5-phenyl-, and 5-methyl-3-phenyl-1,2,4-oxadiazoles gave 1,2,4-triazoles. In the same context, irradiations of representative substrates in the presence of hydrazines have been also investigated. In the irradiation of 3-(o-aminophenyl)-5-methyl-, 3-[o-(methylamino)phenyl]-5-methyl-, and 3-(o-aminophenyl)-5-phenyl-1,2,4-oxadiazoles, concomitant formation of indazoles and benzimidazoles, presumably arising from a common photolytic species, has been observed. Some mechanistic aspects have been considered, and possible applications in synthesis have been pointed out.