98355-36-3

Basic information

• Product Name: (E)-bis(4-phenoxyphenyl)diazene
• CAS NO: 98355-36-3
• Molecular Formula: C₂₄H₁₈N₂O₂
• Molecular Weight: 366.4119
• Mol File: 98355-36-3.mol
• Article Data: 2

Chemical Properties

• Boiling Point: 518.6°C at 760 mmHg
• Flash Point: 213.8°C
• Density: 1.12g/cm³
• Vapor Pressure: 2.42E-10mmHg at 25°C
• Refractive Index: 1.599
• CAS DataBase Reference: (E)-bis(4-phenoxyphenyl)diazene(CAS DataBase Reference)
• NIST Chemistry Reference: (E)-bis(4-phenoxyphenyl)diazene(98355-36-3)
• EPA Substance Registry System: (E)-bis(4-phenoxyphenyl)diazene(98355-36-3)

Safety Data

• Hazardous Substances Data: 98355-36-3(Hazardous Substances Data)

Upstream product

• 546-67-8 lead(IV) tetraacetate 
• 139-59-3 4-phenoxyanilin 
• 620-88-2 4-nitrophenyl phenyl ether 

Downstream Products

• 1440356-90-0 C₃₄H₃₆N₂O₂ 

Relevant articles and documents

Photocatalytic oxidative coupling of arylamines for the synthesis of azoaromatics and the role of O2 in the mechanism

The photocatalytic oxidative coupling of aryl amines to selectively synthesize azoaromatic compounds has been realized. Multiple different photocatalysts can be used to perform the general reaction; however, Ir(dF-CF3-ppy)2(dtbpy)+, where dF-CF3-ppy is 2-(2,4-difluorophenyl)-5-(trifluoromethyl)-pyridine and dtpby is 4,4′-tert-butyl-2,2′-bipyridine, showed the greatest range of reactivity with various amine substrates. Both electron-rich and -deficient amines can be coupled with yields up to 95% under an ambient air atmosphere. Oxygen was deemed to be essential for the reaction and is utilized in the regeneration of the photocatalyst. Fluorescence quenching and radical trap experiments indicate an amine radical coupling mechanism that proceeds through a hydrazoaromatic intermediate before further oxidation occurs to form the desired azoaromatic products.