25976-83-4

Basic information

• Product Name: 2,5-dimethyl-4-phenyl-2,4-dihydro-[1,2,4]triazole-3-thione
• CAS NO: 25976-83-4
• Molecular Weight: 205.283
• Mol File: 25976-83-4.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: 2,5-dimethyl-4-phenyl-2,4-dihydro-[1,2,4]triazole-3-thione(CAS DataBase Reference)
• NIST Chemistry Reference: 2,5-dimethyl-4-phenyl-2,4-dihydro-[1,2,4]triazole-3-thione(25976-83-4)
• EPA Substance Registry System: 2,5-dimethyl-4-phenyl-2,4-dihydro-[1,2,4]triazole-3-thione(25976-83-4)

Safety Data

• Hazardous Substances Data: 25976-83-4(Hazardous Substances Data)

Upstream product

• 137609-49-5 C₁₀H₁₃N₃S 
• 137609-49-5 acetaldehyde 2-methyl-4-phenylthiosemicarbazone 
• 19102-24-0 2-methyl-4-phenyl semicarbazide 
• 21076-09-5 2-methyl-4-phenyl-3-thiosemicarbazide 
• 101116-95-4 3-(2-methyl-4-phenyl-thiosemicarbazono)-butyric acid ethyl ester 
• 78-39-7 Triethyl orthoacetate 

Relevant articles and documents

Photocyclization reaction of some 2-methyl-4-phenyl- substituted aldehyde thiosemicarbazones. Mechanistic aspects

Irradiation of 2-methyl-4-phenyl- substituted benzaldehyde thiosemicarbazones led with good yields to the corresponding ?21,2,4- triazoline-5-thione derivatives through the formation of stable 1,2,4- triazolidine-5-thione intermediates. The relative quantum yields of photocyclization at 313 nm were analysed by means of the Hammett equation and p values determined: We interpreted the results in terms of the mechanism of photocyclization of 2-methyl-4-phenyl-substituted benzaldehyde thiosemicarbazones. (C) 2000 Elsevier Science Ltd.

Photochemical Cyclization of Some Aldehyde Thiosemicarbazones

The photochemical behaviour of some substituted aldehyde thiosemicarbazones 1a-k has been investigated in methanol at 254 nm.Thiosemicarbazones of glyoxil methyl ester 1a-f cyclized to furnish the 3-thioxo-1,2,4-triazin-5-one 2-ring system.The remaining thiosemicarbazones 1g-j gave 1,2,4-triazoline 4-derivatives.

Oxidative cyclisation of ketone thiosemicarbazones. II. Derivatives of phenoxyacetone.

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