2693-32-5

Upstream product

• 4233-33-4 4-Phenyl-1,2,4-triazolidine-3,5-dione 
• 908093-98-1 diazodiphenylmethane 

Downstream Products

• 119-61-9 benzophenone 
• 15988-11-1 4-Phenylurazole 
• 86938-90-1 2,5,5,8,11,11-Hexaphenyl-1,3,7,9-tetraoxoperhydrobis(1,2,4-triazolo<1,2-a;1,2,-d>-1,2,4,5-tetrazinyl) 
• 3043-81-0 6,7-dihydro-2,6,7,7-tetraphenyl<1,2,4>triazolo<1,2-a><1,2,4>triazole-1,3,5-trione 
• 119020-71-2 5,6-dihydro-2,5,5,6,9-pentaphenyl<1,2,4>triazolo<1,2-a><1,2,4,5>tetrazepine-1,3,7-trione 
• 119020-75-6 3-phenyl-6-methoxycarbonyl-1,3,5-triazabicyclo[ 3.1.0]hexane-2,4-dione 
• 4233-33-4 4-Phenyl-1,2,4-triazolidine-3,5-dione 
• 3135-28-2 1,3-dioxo-2,7,7-triphenyl-2,3-dihydro-1H,7H-pyrazolo[1,2-a][1,2,4]triazole-5,6-dicarboxylic acid dimethyl ester 
• 136606-57-0 1,3-dioxo-2,5,5-triphenyl-7-ethoxyperhydropyrazolo<1,2-a>-1,2,4-triazole 

Relevant academic research and scientific papers

Reaction of Diazoalkanes with 4-Substituted 1,2,4-Triazole-3,5(4H)-diones

Diazoacetic esters reacted with 4-substituted 1,2,4-triazole-3,5(4H)-diones (2) to give one-to-one adducts.Molecular weight determination, high-performance-liquid chromatography, and 2D n.m.r. spectroscopy showed that the adducts are monomers that associate in solution.The monomers are most likely 1,3,5-triazabicyclohexane-2,4-diones.The adducts were thermally isomerized to 3,6-disubstituted 1,3,5-triazine-2,4(1H,3H)-diones.Diphenyldiazomethane reacted with (2) to yield an azomethine imine, which underwent thermal dimerization followed by rearrangement.

AZOMETHINE IMINES BASED ON 4-PHENYL-1,2,4-TRIAZOLINE-3,5-DIONE AND ARYL-SUBSTITUTED DIAZOMETHANES

Stable azomethine imines were obtained from aryl-substituted aliphatic diazo compounds and 4-phenyl-1,2,4-triazoline-3,5-dione.Their properties and their cycloaddition to dimethyl acetylenedicarboxylate, in particular, were investigated.