34938-47-1

Basic information

• Product Name: 2-(phenylazo)-1H-imidazole
• Synonyms: 2-(phenylazo)-1H-imidazole
• CAS NO: 34938-47-1
• Molecular Formula: C₉H₈N₄
• Molecular Weight: 172.18662
• EINECS: 252-298-9
• Mol File: 34938-47-1.mol
• Article Data: 8

Chemical Properties

• Boiling Point: 349.7 °C at 760 mmHg
• Flash Point: 165.3 °C
• Appearance: /
• Density: 1.23 g/cm³
• Vapor Pressure: 0.00238mmHg at 25°C
• Refractive Index: 1.655
• CAS DataBase Reference: 2-(phenylazo)-1H-imidazole(CAS DataBase Reference)
• NIST Chemistry Reference: 2-(phenylazo)-1H-imidazole(34938-47-1)
• EPA Substance Registry System: 2-(phenylazo)-1H-imidazole(34938-47-1)

Safety Data

• Hazardous Substances Data: 34938-47-1(Hazardous Substances Data)

Usage

General Description

2-(phenylazo)-1H-imidazole is a chemical compound with the molecular formula C9H8N4. It is a heterocyclic organic compound that contains both an imidazole ring and a phenylazo group. The compound is often used in organic synthesis and is known for its ability to form stable complexes with metal ions. It is also used as a ligand in coordination chemistry and in the preparation of various coordination compounds. The compound has potential applications in the development of new materials and pharmaceuticals due to its unique properties and reactivity. Additionally, it has been studied for its potential use in the field of organic light-emitting diodes and dye-sensitized solar cells.

InChI:InChI=1/C9H8N4/c1-2-4-8(5-3-1)12-13-9-10-6-7-11-9/h1-7,12H

Upstream product

• 288-32-4 1H-imidazole 
• 100-34-5 benzene diazonium chloride 
• 62-53-3 aniline 

Downstream Products

• 86027-01-2 1-Methoxy-3-(2-phenylazo-imidazol-1-yl)-propan-2-ol 
• 583879-18-9 (E)-1-ethyl-2-(phenylazo)imidazole 
• 93937-86-1 (E)-1-methyl-2-(phenylazo)imidazole 
• 7720-39-0 1H-imidazol-2-amine 
• 113-00-8 guanidine nitrate 
• 62-53-3 aniline 
• 96139-65-0 4-(4-amino-phenyl)-1⁽³⁾H-imidazol-2-ylamine 
• 615584-13-9 C₃₀H₂₈N₄O₅ 
• 65146-52-3 2-amino-4-(4-aminophenyl)imidazole dihydrochloride 
• 862702-75-8 [(η5-cyclopentadienyl)Ru(PPh3)(2-(phenylazo)imidazole)][PF6] 
• 862702-87-2 [(η5-indenyl)Ru(PPh3)(2-(phenylazo)imidazole)][BF4] 
• 959853-79-3 [(η(5)-pentamethylcyclopentadienyl)RhCl(2-(phenylazo)imidazole)]PF6 
• 959853-97-5 [(η(5)-pentamethylcyclopentadienyl)IrCl(2-(phenylazo)imidazole)]PF6 
• 913291-94-8 1,3-dimethyl-2-(phenylazo)imidazolium iodide 

Relevant articles and documents

Properties and applications of designable and photo/redox dual responsive surfactants with the new head group 2-arylazo-imidazolium

2-Arylazo-imidazolium was investigated as a new hydrophilic head group for ionic liquid surfactants. With the azo moiety at the 2-C site of imidazolium, it was designed to expand the extensibility of the functionalization and controllability of assembly. Structural designability was displayed by the colloidal chemical properties like surface tension, conductivity and steady fluorescence quenching of the designed surfactants. Their corresponding responsiveness towards photo stimuli was compared. Further properties like the reversible electrochemical redox responsiveness and the instinctive fluorescence of the designed surfactants were discovered. A potential application was demonstrated by the photo-controllable fabrication of Au nanostars.

Influence of the cavity size of cyclodextrins on the photochromism of azoimidazoles

1-Alkyl-2-(arylazo)imidazole (RaaiR/) exists in trans configuration about the –N[dbnd]N- bond. Upon optical excitation in UV region the trans-configuration isomerises to cis-RaaiR/. The photochromism is very susceptible to internal substituents and external environment like solvent polarity, viscosity and presence of innocent foreign species. In this work, the trans-to-cis photoisomerisation of RaaiR/has been studied in DMF solution of cyclodextrin (α/β/γ-CD). The rate of trans-to-cis isomerisation is decreased in presence of CD compared to native form of RaaiR/. The quantum yield of the photoisomerisation is decreased by 35–55% in inclusion phase, CD@RaaiR/, than free photochrome and follows the rate sequence: free state > γ-cyclodextrin > β-cyclodextrin > α-cyclodextrin. The cis-to-trans isomerisation proceeds slowly in visible light irradiation while it is appreciably fast with increasing temperature. The activation energy (Ea) of cis → trans thermal isomerisation is also diminished compared to free state of photochrome. The absorption spectral studies have been used in case of Pai-C18H37 with β-CD and inclusion constant is Kb ?= ?0. 121 M?1. The 1H NMR spectral measurement also suggests interaction of aryl protons with cavity protons of β-CD. DFT computation is also attempted to examine the inclusion of RaaiR/with CD and the negative values of binding energy show that the process of inclusion is spontaneous and complexes formed are stable.

A facile and new approach to synthesize 2-amino-4-(4-amoinophenyl)-1H-1,3- diazol-1-yl-alkylaminomethanethiones

An "intellectual connection" approach to design a facile and new synthesis of suitably substituted 2-aminoimidazole-based precursors of expected anti-asthmatic agents through a benzidine type of rearrangement of 2-phenylazoimidazole and subsequent coupling of the product thus obtained with alkylisothiocyanates involving a degenerative operation, thereby improving the time frame of the overall synthetic sequence, is reported. The alkylisothiocyanates required in this synthetic sequence are prepared using a best combination of reported methods. The compounds reported here can be used to produce derivatives of other biological agents. Birkhaeuser 2007.