64264-33-1

Upstream product

• 64264-31-9 1-(2,4-dinitrophenyl)-2-phenylhydrazine 
• 584-48-5 2,4-dinitrobromobenzene 
• 100-63-0 phenylhydrazine 
• 2486-07-9 2,4-dinitrophenyl phenyl ether 
• 97-00-7 1-chloro-2,4-dinitro-benzene 
• 41214-79-3 N-(2,4-dinitrophenyl)benzamide 
• 3601-98-7 N-(2,4-dinitro-phenyl)-benzimidoyl chloride 

Downstream Products

• 21819-66-9 2-phenyl-2H-benzo[d][1,2,3]triazol-5-amine 
• 23851-59-4 2-(p-aminophenyl)-2H-benzotriazolyl-5-amine 
• 21036-54-4 2-phenyl-4-nitroso-5-hydroxybenzotriazole 
• 6757-89-7 2-phenyl-5-hydroxybenzotriazole 

Relevant academic research and scientific papers

TREATMENT OF DUCHENNE MUSCULAR DYSTROPHY

There are disclosed compound of Formula (I) or (II) wherein A1, A2, A3, A4and A5, which may be the same or different, represent N or CR1, R9 represents - L -R3, in whi

SYNTHESIS OF 5-HYDROXY-4-NITROSOBENZOTRIAZOLES AND 6-HYDROXY-7-NITROSO-INDAZOLES AND THEIR SPLITTING INTO β-TRIAZOLYL- AND β-PYRAZOLYLACRYLIC ACIDS

5-Hydroxy-4-nitrosobenzotriazoles and 6-hydroxy-7-nitrosoindazoles were synthesized.By the action of benzenesulfonyl chloride in an alkaline medium, only 5-hydroxy-4-nitroso-2-phenyl-benzotriazole and 1-methyl-6-hydroxy-7-nitrosoindazole split into 5-carb

Intramolecular Reaction Between Nitro and Carbodi-imide Groups; A New Synthesis of 2-Arylbenzotriazoles

1-(2-Nitrophenyl)-5-phenyltetrazole (5b) decomposes when heated to give nitrogen, carbon dioxide, and 2-phenylbenzotriazole (6) in high yield.This new molecular rearrangement proceeds via 2-nitrophenyl(phenyl)carbodi-imide (8).Other precursors of this carbodi-imide, i.e. oxadiazolone (10), oxadiazolethione (11), oxathiadiazole 2-oxide (12), and the aminimide (16), and carbodi-imide itself, all give 2-phenylbenzotriazole (6) on thermolysis, the last three in high yield.This reaction is general for diarylcarbodi-imides with an ortho nitro group, and their precursors, and it provides a useful new route to 2-arylbenzotriazoles.A sequence of electrocyclic ring closing and opening reactions (Scheme 5) is proposed as the mechanism of this process.The key intermediate, 2-phenyl-1,2,4-benzotriazin-3-one 1-oxide (19) has been isolated from a careful thermolysis of (12) in toluene; in solution it is in reversible equlibrium with the ring-opened form (20).This new nitro-carbodi-imide group interaction has been extended to the more stable nitrobiphenyl(phenyl)carbodi-imide (25) and nitronaphthyl(phenyl)carbodi-imide (24) which, on flash vacuum pyrolysis, give benzimidazophenanthridine (29) and benzindazole 1-oxide (32) respectively, in new rearrangements.