3682-83-5

Upstream product

• 1916-74-1 4-(2H-benzo[d][1,2,3]triazol-2-yl)aniline 
• 64-17-5 ethanol 
• 2724-85-8 4-((2-nitrophenyl)diazenyl)phenol 
• 3933-76-4 2-(4-methoxyphenyl)-2H-benzo[d][1,2,3]triazole 
• 35527-28-7 4’-methoxy-2-nitroazobenzene 
• 88-74-4 2-nitro-aniline 
• 108-95-2 phenol 
• 2724-85-8 4-[(2-nitrophenyl)azo]phenol 
• 612-29-3 o-nitronitrosobenzene 
• 104-94-9 4-methoxy-aniline 

Downstream Products

• 4546-95-6 1H-1,2,3-triazole-4,5-dicarboxylic acid 
• 100726-44-1 acetic acid-(4-benzotriazol-2-yl-phenyl ester) 
• 95-14-7 1,2,3-Benzotriazole 

Relevant academic research and scientific papers

Synthesis and preliminary pharmacological investigation of some 2-[4-(dialkylaminoalkoxy)phenyl]benzotriazoles and their N-oxides

A set of 2-[4-(dialkylaminoalkoxy)phenyl]benzotriazoles and corresponding N-oxides was prepared. In a preliminary pharmacological investigation concerning some of these compounds, several in vitro and in vivo activities were shown. At concentrations in th

Preparation of Some 2-(Methoxyphenyl)-2H-benzotriazoles and the Corresponding Hydroxyphenyl Compounds

The reaction of several substituted o-nitronitrosobenzenes with o- and p-anisidine, and 2,4-dimethoxyaniline in acetic acid gives in good yield the corresponding o-nitroazobenzenes which are readily reduced with thiourea dioxide (formamidinesulfinic acid) to the corresponding 2-(methoxyphenyl)-2H-benzotriazoles, demethylation of which furnished the corresponding 2-(hydroxyphenyl)-2H-benzotriazoles.Demethylation of the dimethoxy derivatives was best accomplished with boron tribromide in methylene chloride, the methoxy group located ortho to the benzotriazole ring beingdemethylated more readily than is the para-methoxy group.The reaction of 0-nitroazobenzenes containing a methoxy group with hydrobromic acid in acetic acid results in cleavage of the azo bond and also partial bromination to give o-nitroaniline and some of its brominated derivatives.

Polychromophoric ultraviolet stabilizers and their use in organic compositions

The invention relates to polychromophoric compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of the polychromophoric compositio

Method of making hydroxyarylbenzotriazoles and their N-oxides

Catalytic hydrogenation of o-nitrophenylazohydroxyaryls in an alkaline medium yields hydroxyarylbenzotriazoles; under mild conditions an N-oxide is formed. E.g., 6-tert-butyl-2-(5'-chloro-2'-nitrohenylazo)-p-cresol is hydrogenated to 5-chloro-2-(3'-tert-b

Multichromophoric benzotriazole ultraviolet stabilizers

The invention relates to multichromophoric compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of the multichromophoric composit

Polychromophoric heterocyclic ultraviolet stabilizers and their use in organic compositions

The invention relates to polychromophoric heterocyclic ester compounds which have been found to be effective ultraviolet stabilizers. The invention also relates to ultraviolet degradable organic compositions containing a stabilizing amount of these polych