139-24-2

Basic information

• Product Name: 3,3'-DICHLOROAZOXYBENZENE
• Synonyms: 3,3'-DICHLOROAZOXYBENZENE;(3-chlorophenyl)-(3-chlorophenyl)imino-oxidoazanium
• CAS NO: 139-24-2
• Molecular Formula: C₁₂H₈Cl₂N₂O
• Molecular Weight: 267.11
• Mol File: 139-24-2.mol
• Article Data: 49

Chemical Properties

• Boiling Point: 415.2°C at 760 mmHg
• Flash Point: 204.9°C
• Appearance: /
• Density: 1.33g/cm³
• Vapor Pressure: 1.01E-06mmHg at 25°C
• Refractive Index: 1.614
• CAS DataBase Reference: 3,3'-DICHLOROAZOXYBENZENE(CAS DataBase Reference)
• NIST Chemistry Reference: 3,3'-DICHLOROAZOXYBENZENE(139-24-2)
• EPA Substance Registry System: 3,3'-DICHLOROAZOXYBENZENE(139-24-2)

Safety Data

• Hazardous Substances Data: 139-24-2(Hazardous Substances Data)

Usage

Description

3,3'-Dichloroazoxybenzene, a benzene derivative with the molecular formula C12H8Cl2N2O2, is a yellow crystalline solid. It features two chlorine atoms and a nitroso group attached to the benzene ring, and is primarily utilized as an intermediate in the production of dyes and pigments. Due to its mutagenic and carcinogenic properties, it requires careful handling to prevent potential health risks, including harm from inhalation, ingestion, and skin or eye irritation.

Uses

Used in Chemical Industry:
3,3'-Dichloroazoxybenzene is used as an intermediate for the synthesis of dyes and pigments, contributing to the development of a wide range of colorants for various applications.
Used in Research and Development:
3,3'-DICHLOROAZOXYBENZENE may also be employed in research settings to study the effects of chemical modifications on benzene derivatives, potentially leading to the discovery of new properties and uses.

InChI:InChI=1/C12H8Cl2N2O/c13-9-3-1-5-11(7-9)15-16(17)12-6-2-4-10(14)8-12/h1-8H/b16-15-

Upstream product

• 64-17-5 ethanol 
• 932-78-5 1-chloro-3-nitrosobenzene 
• 10468-17-4 N-(3-chlorophenyl)hydroxylamine 
• 121-73-3 3-Nitrochlorobenzene 
• 2372-45-4 sodium butanolate 
• 71-43-2 benzene 
• 4920-79-0 2-chloro-4-nitroanisole 
• 6831-82-9 potassium isopropoxide 
• 20607-43-6 sodium isopropanethiolate 
• 4601-78-9 6-chloro-2-(hydroxyamino)phenyl phenyl sulphone 
• 108-42-9 3-chloro-aniline 
• 67-56-1 methanol 
• 10034-85-2 hydrogen iodide 
• 64-19-7 acetic acid 

Downstream Products

• 953-01-5 3,3'-dichlorohydrazobenzene 
• 15426-14-9 3,3'-dichloroazobenzene 
• 624-92-0 Dimethyldisulphide 
• 5211-01-8 3-Chloro-4-methylsulfanyl-phenylamine 
• 108-42-9 3-chloro-aniline 
• 4253-89-8 diisopropyl sulfide 
• 5211-09-6 4-amino-2-chloro-1-<(1-methylethyl)thio>benzene 
• 110-06-5 di-tert-butyl disulfide 
• 106131-20-8 (E)-1,2-bis(3-chlorophenyl)diazene 
• 84-68-4 2,2'-dichlorobenzidine 
• 59360-16-6 2-chloro-4-(3-chloro-phenylazo)-phenol 
• 1706-82-7 3-chloro-2,4,6-trinitro-phenol 

Relevant articles and documents

Preparation of niobium or tantalum complex and application of niobium or tantalum complex in catalyzing aromatic amine to generate oxidized azobenzene compound

The invention provides a preparation method of niobium or tantalum complex and an application of the niobium or tantalum complex in catalyzing aromatic amine to generate an oxidized azobenzene compound. The preparation method of the complex comprises A hydration oxide preparation, @timetime@ niobium oxide or tantalum oxide and strong base in 300 - 800 °C melting calcination 2 - 8h, adding water to dissolve and filter, and then adjusting pH through 4-6, suction filtration and drying. The B complex is prepared by mixing a hydrated oxide with a molar ratio 10-25: 1 with hydrogen peroxide, adding an organic acid and a cationic precursor after clarifying the solution, and evaporating and drying to obtain a niobium complex or a tantalum complex. The molar ratio @timetime@: 1-3. In the method for synthesizing the oxidized azobenzene compound by using niobium or tantalum complex as a catalyst, ethanol is used as a solvent, hydrogen peroxide is used as an oxidant, niobium complex or tantalum complex is used as a catalyst, and the addition amount is ppm.

Preparation of azoxy benzene (by machine translation)

[A] good workability and safety, cost, and, efficient production of the azoxy benzene azoxy benzene can be produced. [Solution] nitrobenzene ones, having the photocatalytic function with a dye, a reducing agent such as a fluorine resin or a transparent resin material is a mixed solution of 1 mm in diameter are inserted into the tube 4 does not inhibit the reaction, 4 LED lamp 5 emits visible from the outside of the tube moves within the tube 4 is provided with visible light within the tube 4 by a photocatalyst reaction mixed solution so as to obtain azoxy benzene compounds. Figure 2 [drawing] (by machine translation)

Nb2O5 supported on mixed oxides catalyzed oxidative and photochemical conversion of anilines to azoxybenzenes

The synthesis of novel supported niobium oxide catalysts and their application for aniline conversion to azoxybenzenes is described. The catalysts were successfully prepared by thermal decomposition of layered double hydroxides (LDHs), containing M2+ (M = Mg2+ and/or Zn2+) and Al3+ as layer cations, followed by niobium oxide incorporation employing the wetness impregnation method. These catalysts were fully characterized by both experimental techniques and theoretical calculations, and then successfully applied to the selective conversion of anilines into azoxybenzene derivatives, with up to 98% conversion and 92% isolated yield in the presence of violet light. Control experiments and DFT calculations revealed that the catalyst has a dual role in this transformation, acting both as a Lewis acid in the oxidative step and as a photocatalyst in the dimerization of the nitrosobenzene intermediate.