26038-05-1

Basic information

• Product Name: 2-phenyl-5,9-dihydro-5,9-etheno-[1,2,4]triazolo[1,2-a]diazepine-1,3,6-trione
• Synonyms: 2-phenyl-5,9-dihydro-5,9-etheno-[1,2,4]triazolo[1,2-a]diazepine-1,3,6-trione
• CAS NO: 26038-05-1
• Molecular Weight: 281.271
• Mol File: 26038-05-1.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: 2-phenyl-5,9-dihydro-5,9-etheno-[1,2,4]triazolo[1,2-a]diazepine-1,3,6-trione(CAS DataBase Reference)
• NIST Chemistry Reference: 2-phenyl-5,9-dihydro-5,9-etheno-[1,2,4]triazolo[1,2-a]diazepine-1,3,6-trione(26038-05-1)
• EPA Substance Registry System: 2-phenyl-5,9-dihydro-5,9-etheno-[1,2,4]triazolo[1,2-a]diazepine-1,3,6-trione(26038-05-1)

Safety Data

• Hazardous Substances Data: 26038-05-1(Hazardous Substances Data)

Upstream product

• 4233-33-4 4-Phenyl-1,2,4-triazolidine-3,5-dione 
• 16273-47-5 ditropylether 
• 539-80-0 Tropone 

Downstream Products

• 121080-72-6 C₁₇H₁₉N₃O₂ 
• 121080-71-5 8-Methylene-4-phenyl-2,4,6-triaza-tricyclo[5.3.2.0^2,6]dodecane-3,5-dione 
• 32418-40-9 2-phenyl-dihydro-5,9-ethano-[1,2,4]triazolo[1,2]diazepine-1,3,6-trione 

Relevant articles and documents

Unambiguous detection of 2,4,6-cycloheptatrien-1-ol by NMR spectroscopy and trapping with phenyltriazolinedione

For the first time, the title alcohol 3 was unambiguously detected as a transient intermediate leading to ditropylether (6) in a cation-anion reaction between the tropylium ion (5) and hydroxide ion in an aqueous solution by NMR spectroscopy. It was also found that 6 gives 3 as a transient product in acid-catalyzed disproportionation of 6 into a mixture of tropone (4) and 1,3,5-cycloheptatriene (7) in chloroform containing water. Furthermore the existence of 3 in the latter reaction was confirmed by trapping with 4-phenyl-1,2,4-triazoline-3,5-dione to afford the [4+2]cycloadduct of the norcaradiene form of 3.