27959-42-8

Basic information

• Product Name: 4-tert-Butyl-2-(2-nitro-phenylazo)-phenol
• Synonyms: 4-tert-Butyl-2-(2-nitro-phenylazo)-phenol
• CAS NO: 27959-42-8
• Molecular Weight: 299.329
• Mol File: 27959-42-8.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: 4-tert-Butyl-2-(2-nitro-phenylazo)-phenol(CAS DataBase Reference)
• NIST Chemistry Reference: 4-tert-Butyl-2-(2-nitro-phenylazo)-phenol(27959-42-8)
• EPA Substance Registry System: 4-tert-Butyl-2-(2-nitro-phenylazo)-phenol(27959-42-8)

Safety Data

• Hazardous Substances Data: 27959-42-8(Hazardous Substances Data)

Upstream product

• 98-54-4 para-tert-butylphenol 
• 88-74-4 2-nitro-aniline 

Downstream Products

• 106937-87-5 2-(5-tert-butyl-2-hydroxyphenyl)-2H-benzotriazole-N-oxide 
• 3147-76-0 2-(5-tert-butyl-2-hydroxyphenyl)benzotriazole 
• 3147-75-9 Cyasorb UV 5411 
• 84755-44-2 2,4-bis(1,1-dimethylethyl)-6-(1-oxido-2H-benzotriazol-2-yl)phenol 
• 615-15-6 2-Methyl-1H-benzimidazole 
• 617-84-5 N-formyldiethylamine 
• 88-74-4 2-nitro-aniline 

Relevant articles and documents

BENZOTRIAZOLE DERIVATIVE COMPOUNDS

PROBLEM TO BE SOLVED: To provide novel compounds that may be wavelength conversion materials exhibiting an excellent wavelength conversion property of efficiently converting ultraviolet light to blue light in solution and film states, and exhibiting excellent light fastness of not deteriorating by irradiation with the ultraviolet light. SOLUTION: The invention provides benzotriazole derivative compounds of the general formula in the figure. [Preferably, R1 is a formyl group or alkylcarbonyl group; R2 is a hydrogen atom, alkyl group, carboxyalkyl group, alkyloxycarbonylalkyl group, hydroxyalkyl group, or alkylcarbonyloxyalkyl group; and R3 is a hydrogen atom or halogen atom.] SELECTED DRAWING: None COPYRIGHT: (C)2019,JPOandINPIT

Synthesis of diaryl-azo derivatives as potential antifungal agents

As compared with a commercially available agricultural fungicide hymexazol, some phenyl-azo phenol derivatives (e.g., 4a, 4b, 4f, 4n, 4q, 4u, and 4v) exhibited the more promising and pronounced antifungal activities in vitro against seven phytopathogenic fungi. It seemed that 4-((un)substituted phenylazo)-phenol and 4-((un)substituted phenylazo)-3-methylphenol might be considered as new lead structures for further design of agricultural fungicides.

High caustic coupling process for preparing substituted 2-nitro-2'-hydroxyazobenzenes

Substituted 2-nitro-2'-hydroxyazobenzenes are prepared by adding an aqueous mineral acid solution of a diazotized o-nitroaniline to a strongly alkaline lower alkanol or aqueous lower alkanol solution of a substituted phenol, containing sufficient alkali metal hydroxide to assure a pH value substantially over 11 and an excess of hydroxyl ion in the reaction mixture even after all the acidic diazonium salt solution is added, wherein the reaction solvent mixture is at least 50% by weight of lower alkanol, at a reaction temperature between -15° C. and +30° C. The o-nitroazobenzenes obtained are intermediate products useful in the manufacture of benzotriazole UV absorbers.