4677-04-7

Upstream product

• 120-72-9 indole 
• 64-19-7 acetic acid 
• 62-53-3 aniline 
• 948-65-2 2-phenyl-indole 

Downstream Products

• 2989-63-1 2-phenyl-3H-indol-3-one 
• 4993-86-6 2-phenyl-3,6-dinitroindole 
• 4771-06-6 2-phenyl-3-nitro-1H-indole 
• 78395-82-1 3-(4-nitrophenyldiazenyl)-2-phenyl-1H-indole 
• 1058720-98-1 2-phenyl-1-propyl-1H-indol-3-amine 
• 78395-71-8 1-methyl-2-phenyl-3-nitro-1H-indole 
• 78395-73-0 1-methyl-2-phenyl-3,6-dinitroindole 
• 78395-72-9 1-ethyl-2-phenyl-3-nitroindole 

Relevant academic research and scientific papers

Phenylazoindole dyes 3: Determination of azo-hydrazone tautomers of new phenylazoindole dyes in solution and solid state

A new two series of phenylazo indole dyes was synthesized and the structures of the dyes were confirmed by UV-vis, FT-IR, HRMS and 1H/13C NMR spectroscopic techniques. Five of these dyes (I, I′, II′, III and III′) were also characterized in solid state by using single crystal X-ray diffraction studies besides other spectroscopic techniques. The geometries of the azo and hydrazone tautomeric forms of the dyes were optimized by using Density Functional Theory (DFT). In addition, the effects of the donor and acceptor groups on the azo and hydrazone forms of the dyes were evaluated experimentally and theoretically. The results indicate that the phenylazoindole dyes derived from 2-phenyl indole as coupling component exist as azo form in solution, gas phase and solid state.

Diazo Coupling of Benzenediazonium Chloride with Indole in Acetic Acid

Diazo Coupling of aryldiazonium chloride with indole in acetic acid gives several unusual products, besides normal azo compounds.Some of the major products have been isolated by column chromatography and characterised by UV, IR, PMR and mass spectral data.Formation of I-VI has also been rarionalised.