7716-37-2

Upstream product

• 857801-02-6 1-phenyl-1H-indazole-3-carbonyl chloride 
• 71-43-2 benzene 
• 7716-36-1 1-phenyl-1H-indazole-3-carboxylic acid 
• 3282-32-4 2-diazo-acetophenone 
• 88284-48-4 2-(trimethylsilyl)phenyl trifluoromethanesulfonate 
• 6630-86-0 benzil phenylhydrazone 
• 37877-78-4 methyl 1-phenyl-1H-indazole-3-carboxylate 

Relevant academic research and scientific papers

[Bis-(trifluoroacetoxy)iodo]benzene-Mediated Oxidative Direct Amination C–N Bond Formation: Synthesis of 1H-Indazoles

An efficient [bis-(trifluoroacetoxy)iodo]benzene (PIFA)-mediated oxidative C-N bond formation is developed for the synthesis of 1H-indazoles from readily available arylhydrazones. The reaction tolerates a wide range of functional groups and has broad scope of substrates. Moreover, this method is a relative green and reliable method for rapid preparation of substituted 1H-indazoles under mild conditions.

An efficient transition-metal-free synthesis of 1H-indazoles from arylhydrazones with montmorillonite K-10 under O2 atmosphere

An efficient transition-metal-free synthetic method of 1H-indazoles has been developed. The reaction of arylhydrazones in the presence of montmorillonite K-10 in 1,2-dichlorobenzene at 130 °C afforded 1H-indazoles in good yields most likely via a sequenti

Silver-catalyzed [3+2]-cycloaddition of benzynes with diazocarbonyl species via a postulated (1H-indazol-1-yl)silver intermediate

We reported a new synthesis of 2-aryl-2H-indazoles via a silver-catalyzed [3+2]-cycloaddition of benzynes with diazocarbonyl reagents. We postulate that this transformation involves the generation of (1H-indazol-1-yl)silver to activate a subsequent arylation with the second benzyne.