83160-35-4

Upstream product

• 530-93-8 1,2,3,4-tetrahydronaphthalen-2-one 
• 100-63-0 phenylhydrazine 

Downstream Products

• 239-01-0 11H-benzo[a]carbazole 
• 5425-53-6 5,6-dihydro-7H-benzocarbazole 
• 131365-82-7 C₁₇H₁₇N₃O 
• 131365-97-4 (2-Isocyanato-1,2,3,4-tetrahydro-naphthalen-2-yl)-phenyl-diazene 
• 132240-36-9 3-Phenyl-3,5,10,11-tetrahydro-<1,2,4>triazolo<2,3-b>-<2>benzazepin-2-one 

Relevant academic research and scientific papers

Rearrangement of 3,3-Disubstituted 1-Aryl-4,5-dihydro-5-oxo-3H-1,2,4-triazolium Tetrafluoroborates; Part 2. A Convenient Synthesis of 1,5-Annulated 1,2-Dihydro-2-phenyl-3H-1,2,4-triazol-3-ones

1-Isocyanato-1-(phenylazo)cycloalkanes 3 react with tetrafluoroboric acid to yield 3-spiro substituted 4,5-dihydro-5-oxo-1-phenyl-3H-1,2,4-triazolium tetrafluoroborates 4.Compounds 4 rearrange with ring expansion in good yield to give, after basic workup,

Reactivity and Decay Pathways of Photoexcited Anilinonaphtalenes

N-Methyl-2-anilinonaphthalene (2-MAN) is converted by light into 7-methyl-7H-benzocarbazole (7-MBC) and 5-methyl-6,7-dihydro-5H-benzocarbazole (9).The reaction takes place only in the absence of oxygen and is regioselective; i.e., the isomeric 5-methyl-5H-benzocarbazole (5-MBC) is not formed.Ring closure takes place from the excited triplet state of 2-MAN and a zwitterionic intermediate was found in flash experiments.N-Methyl-2-anilino-6-naphthalenesulfonate (2-MANS) behaves similarly.Caution should therefore be exercised if such compounds are used as fluorescence probes.N-Methyl-1-anilinonaphthalene (1-MAN) is photochemically more stable than 2-MAN.