82238-71-9

Upstream product

• 4233-33-4 4-Phenyl-1,2,4-triazolidine-3,5-dione 
• 36673-54-8 spiro<4.6.>undeca-1,3,6,8,10-pentaene 

Relevant academic research and scientific papers

CYCLOADDITION OF SINGLET OXYGEN AND TRIAZOLINEDIONE (TAD) WITH SPIROCYCLOPENTADIENYL-1,3,5-CYCLOHEPTATRIENES: TROPILIDENE VERSUS NORCARADIENE REACTIVITY

4-Methyl-1,2,4-triazoline-3,5-dione (MTAD) gives with 7-spirofluorenyl-1,3,5-cycloheptatriene (1d) initially the norcaradiene-type urazole (N3d) which at ambient temperatures rearranges into (6d), while 1O2 gives the tropilidene-type endoperoxide (T4d).