126275-51-2

Upstream product

• 91823-29-9 N-(2-azidobenzylidene)aniline 
• 603-35-0 triphenylphosphine 

Downstream Products

• 127358-32-1 Phenyl-(1-phenyl-1H-[1,2,4]triazolo[1,5-b]indazol-2-yl)-amine 
• 127358-34-3 Methyl-(1-phenyl-1H-[1,2,4]triazolo[1,5-b]indazol-2-yl)-amine 
• 126275-60-3 Ethyl-(1-phenyl-1H-[1,2,4]triazolo[1,5-b]indazol-2-yl)-amine 
• 127358-45-6 C₃₅H₃₁N₄OP 
• 127358-33-2 (4-Fluoro-phenyl)-(1-phenyl-1H-[1,2,4]triazolo[1,5-b]indazol-2-yl)-amine 
• 126275-61-4 (1-Phenyl-1H-[1,2,4]triazolo[1,5-b]indazol-2-yl)-p-tolyl-amine 
• 127358-38-7 1-phenyl-2-thioxo-2,3-dihydro-1H-1,2,4-triazolo<2,3-b>indazole 
• 127358-37-6 1-phenyl-2-oxo-2,3-dihydro-1H-1,2,4-triazolo<2,3-b>indazole 
• 126275-57-8 2-amino-3-(phenylamino)-2H-indazole 
• 127358-44-5 C₃₄H₂₉N₄OP 

Relevant academic research and scientific papers

Iminophosphorane-Mediated Synthesis of 2H-Indazole Derivatives: Preparation of 2,3-Diamino-2H-indazoles by Intramolecular Trapping of Phosphazides and 1H-1,2,4-Triazoloindazoles by a Tandem Aza-Wittig/Heterocumulene-Mediated Strategy

Treatment of o-azidobenzaldimines 2 with tertiary phosphines in methylene chloride at 0 deg C leads to the corresponding 2,3-diamino-2H-indazole derivatives 3 by cyclization of the intermediate phosphazide.Compounds 3 react with isocyanates, carbondioxide

Intramolecular Trapping of a Phosphazide by an Imine: Formation of 2,3-Diamino-2H-indazole Derivatives from o-Azidobenzaldimines and Tertiary Phosphines

Treatment of o-azidobenzaldimines with tertiary phosphines in dichloromethane at 0 deg C gave the corresponding 2,3-diamino-2H-indazole derivatives in good yields via the Staudinger reaction followed by cyclization of the intermediate phosphazide.