2273-08-7

Basic information

• Product Name: 3H-1,2,4-Triazole-3-thione, 2,4-dihydro-2,4,5-triphenyl-
• CAS NO: 2273-08-7
• Molecular Formula: C20H15N3S
• Molecular Weight: 329.425
• Mol File: 2273-08-7.mol

Chemical Properties

• CAS DataBase Reference: 3H-1,2,4-Triazole-3-thione, 2,4-dihydro-2,4,5-triphenyl-(CAS DataBase Reference)
• NIST Chemistry Reference: 3H-1,2,4-Triazole-3-thione, 2,4-dihydro-2,4,5-triphenyl-(2273-08-7)
• EPA Substance Registry System: 3H-1,2,4-Triazole-3-thione, 2,4-dihydro-2,4,5-triphenyl-(2273-08-7)

Safety Data

• Hazardous Substances Data: 2273-08-7(Hazardous Substances Data)

Upstream product

• 13207-47-1 2,4-diphenyl-thiosemicarbazide 
• 4903-36-0 N-phenyl-benzimidoyl chloride 
• 166773-08-6 (1,3,4)-triphenyl-4,5-dihydro-1H-1,2,4-triazol-5-ylidene 
• 103-72-0 phenyl isothiocyanate 
• 532-96-7 N-benzoyl-N'-phenylhydrazine 
• 98-88-4 benzoyl chloride 
• 588-64-7 benzaldehyde phenylhydrazone 
• 74830-06-1 4-benzylidene-2,4-diphenyl-thiosemicarbazide 

Relevant articles and documents

Chemical reactions of the stable carbene 1,3,4-triphenyl-4,5-dihydro-1H-1,2,4-triazol-5-ylidene

The title compound 1,3,4-triphenyl-4,5-dihydro-1H-1,2,4-triazol-5-ylidene (1), a stable carbene, is chemically characterized via its reactivity towards a multitude of organic substrates. Its behaviour in insertion, addition and cycloaddition reactions allows its classification as a typical representative of nucleophilic carbenes. VCH Verlagsgesellschaft mbH, 1996.

A quantitative study of substituent effects on oxidative cyclization of some 2-aryl-substituted aldehyde thiosemicarbazones induced by ferric chloride and cupric perchlorate

As a development of our previous work, we performed a kinetic study of the oxidative cyclization reaction of some 2,4-diaryl-substituted aldehyde thiosemicarbazones 1a-n induced by ferric chloride and by cupric perchlorate. The results of cyclization of 1

Darstellung, Struktur und Reaktivitaet von 1,3,4-Triphenyl-4,5-dihydro-1H-1,2,4-triazol-5-yliden, einem neuen stabilen Carben

Stichworte: Carbene * Cycloadditionen * Heterocyclen * Insertionen

Azocoupling of Quaternary 1,2,4-Triazolium Salts to Form 5-p-N,N-Dimethylaminophenylazo-1,2,4-triazolium Salts

Quaternary 1,2,4-triazolium salts 1 couple easily with p-N,N-dimethylamino-benzenediazonium salts to form azodyes 3 (5-N,N-dimethylaminophenylazo-1,2,4-triazolium salts), preferably under solid-liquid phase transfer conditions using chloroform or methylene chloride and triethylamine or DABCO.Zwitterionic 1,2,4-triazolium salts (anhydro mercapto hydroxide, anhydro hydroxy hydroxide, and anhydro anilido hydroxide ("nitron")) couple as well.The azodyes - as also well known from industrially used types - absorb in the region of 500 nm and have high extinction coefficients.Substituents in 1-, 3- or 4-position of the triazolium ring exert no clear substituent effects.The quaternary 1,2,4-triazolium salts were synthesized according to standard procedures.