85497-36-5

Basic information

• Product Name: 2-(5-chlorobenzotriazol-2-yl)-4-methyl-6-tert-butyl-phenol
• Synonyms: 2-(5-chlorobenzotriazol-2-yl)-4-methyl-6-tert-butyl-phenol
• CAS NO: 85497-36-5
• Molecular Formula: C17H18ClN3O
• Molecular Weight: 0
• Mol File: 85497-36-5.mol
• Article Data: 25

Chemical Properties

• Appearance: /
• CAS DataBase Reference: 2-(5-chlorobenzotriazol-2-yl)-4-methyl-6-tert-butyl-phenol(CAS DataBase Reference)
• NIST Chemistry Reference: 2-(5-chlorobenzotriazol-2-yl)-4-methyl-6-tert-butyl-phenol(85497-36-5)
• EPA Substance Registry System: 2-(5-chlorobenzotriazol-2-yl)-4-methyl-6-tert-butyl-phenol(85497-36-5)

Safety Data

• Hazardous Substances Data: 85497-36-5(Hazardous Substances Data)

Upstream product

• 50-00-0 formaldehyd 
• 94102-12-2 2-(2-hydroxy-3-t-butyl-5-methylphenyl)-5-chlorobenzotriazole-N-oxide 
• 64-17-5 ethanol 
• 90-44-8 anthracen-9(10H)-one 
• 117-80-6 2,3-Dichloro-1,4-naphthoquinone 
• 50-99-7 D-glucose 
• 2440-22-4 2-(2-Hydroxy-5-methylphenyl)benzotriazole 
• 486-25-9 9-fluorenone 
• 22617-04-5 2-nitro-4-chloro-2'-hydroxy-3'-tert-butyl-5'-methylazobenzene 
• 89-63-4 4-Chloro-2-nitroaniline 
• 2409-55-4 2-tert-Butyl-4-methylphenol 
• 22617-04-5 2-<(4-Chloro-2-nitrophenyl)azo>-6-(1,1-dimethylethyl)-4-methylphenol 
• 56750-11-9 2-tert-Butyl-6-(6-chloro-1-oxy-benzotriazol-2-yl)-4-methyl-phenol 

Relevant articles and documents

Preparation method of benzotriazole ultraviolet light absorber

The invention relates to a preparation method of a benzotriazole ultraviolet absorbent. The method comprises the following steps: under the action of a magnesium oxide supported metal catalyst, carrying out transfer hydrogenation reaction on an azo intermediate shown in a formula I and a hydrogen donor to obtain a target product shown in a formula III. The method provided by the invention is small in catalyst dosage, the raw material conversion rate can reach 100%, and the target product selectivity is 90% or above.

Preparation method of ultraviolet absorbent containing chlorobenzotriazole

The invention relates to a preparation method of an ultraviolet absorbent containing chlorobenzotriazole. Azobenzene, sodium hydroxide and toluene are stirred and mixed, the temperature is controlled to 60-80 DEG C, water and hydrazine are dropwise added at a constant speed, heat preservation reaction is performed after the completion of dropping, hydrochloric acid is added to perform neutralization to reach the pH of 6-7 after completion of hydrazine reduction, washing is performed, and an oil phase, namely nitrogen oxide, is obtained; the nitrogen oxide solution, alkali, a framework nickel catalyst and a catalyst promoter sodium phosphite are put into an autoclave, and hydrogen is led to perform constant-pressure constant-temperature reaction after nitrogen displacement; after reaction is completed, reaction liquid filtration and washing are performed, an organic phase evaporated solvent is obtained, and recrystallization, filtration and drying are conducted on the methanol and toluene mixed solvent to obtain the ultraviolet absorbent containing chlorobenzotriazole. Compared with an existing synthetic method, the preparation method has the advantages of being good in reaction selectivity, inhibiting a dechlorination phenomenon in the hydrogenation process, producing few by-products and the like and meanwhile does not produce wastewater containing zinc and aluminum, subsequent processing is simple, and the 'three wastes' problem produced in the secondary reduction process is solved.

Preparation of 2-aryl-2H-benzotriazoles by zinc-mediated reductive cyclization of o-nitrophenylazophenols in aqueous media without the use of organic solvents

Zinc powder-mediated reductive cyclization of o-nitrophenylazophenols in alkaline solution affords the corresponding 2-aryl-2H-benzotriazoles in high yields under mild reaction conditions. No organic solvents are used in the reaction and only minimal amounts in the work-up.