1357001-48-9

Basic information

• Product Name: 5-ethoxy-2-(4-ethoxyphenyl)-2H-indazole
• Synonyms: 5-ethoxy-2-(4-ethoxyphenyl)-2H-indazole
• CAS NO: 1357001-48-9
• Molecular Weight: 282.342
• Mol File: 1357001-48-9.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 5-ethoxy-2-(4-ethoxyphenyl)-2H-indazole(CAS DataBase Reference)
• NIST Chemistry Reference: 5-ethoxy-2-(4-ethoxyphenyl)-2H-indazole(1357001-48-9)
• EPA Substance Registry System: 5-ethoxy-2-(4-ethoxyphenyl)-2H-indazole(1357001-48-9)

Safety Data

• Hazardous Substances Data: 1357001-48-9(Hazardous Substances Data)

Upstream product

• 67-56-1 methanol 
• 4792-83-0 4,4'-diethoxyazoxybenzene 

Relevant articles and documents

Mesoporous nitrogen doped nano titania - A green photocatalyst for the effective reductive cleavage of azoxybenzenes to amines or 2-phenyl indazoles in methanol

A new nitrogen precursor, hydrazine hydrate was used in the synthesis of nano-sized, N-doped TiO2 photocatalyst by a simple wet impregnation method. This photocatalyst was characterized by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), High resolution transmission electron microscope (HR-TEM), UV-vis diffuses reflectance spectra (DRS), photoluminescence (PL) and X-ray photoelectron spectroscopy (XPS). XRD patterns show that the crystal structure of N-TiO2 resembles anatase phase of TiO2. The UV-vis spectra indicate an increase in absorption of visible light when compared to TiO2. Furthermore XPS analysis reveals the presence of the N atom as O-Ti-N linkage substituting the O atom in the TiO2 lattice and this causes a decrease in oxygen vacancies. N-TiO2 nanoparticles were used as a green and recyclable heterogeneous photocatalyst for rapid and efficient reductive cleavage of azoxybenzene into their corresponding amines or 2-phenylindazoles with methanol at room temperature under N2 atmosphere. Azoxybenzenes in neat methanol afforded anilines, while in aqueous methanol (20% water-80% methanol) they formed corresponding 2-phenyl indazoles. In both reductive cleavages, nano N-TiO2 is more effective than prepared TiO2, showing that the nitrogen doping could be an excellent choice to improve the photoactivity of TiO2.