84268-33-7

Basic information

• Product Name: Benzenepropanoic acid, 3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxy-, methyl ester
• Synonyms: Benzenepropanoic acid, 3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxy-, methyl ester;Methyl-3-(3-(2H-benzotriazol-2-yl)-5-tert.butyl-4-hydroxyphenyl)propionat;2-(2H-Benzotriazol-2-yl)-5-tert-butyl-4-hydroxyphenylpropionic acid methyl;2-[3'-tert-Butyl-2'-hydroxy-5'-(2-methoxycarbonylethyl)phenyl]benzotriazole;Tinuvin 1130: Benzenepropanoic acid, 3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxy-, methyl ester
• CAS NO: 84268-33-7
• Molecular Formula: C20H23N3O3
• Molecular Weight: 353.41
• EINECS: 400-820-2
• Mol File: 84268-33-7.mol
• Article Data: 5

Chemical Properties

• Boiling Point: 500.239 °C at 760 mmHg
• Flash Point: 256.335 °C
• Appearance: /
• Density: 1.21 g/cm³
• Vapor Pressure: 1.25E-10mmHg at 25°C
• Refractive Index: 1.6
• Water Solubility: 50μg/L at 20℃
• CAS DataBase Reference: Benzenepropanoic acid, 3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxy-, methyl ester(CAS DataBase Reference)
• NIST Chemistry Reference: Benzenepropanoic acid, 3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxy-, methyl ester(84268-33-7)
• EPA Substance Registry System: Benzenepropanoic acid, 3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxy-, methyl ester(84268-33-7)

Safety Data

• Hazardous Substances Data: 84268-33-7(Hazardous Substances Data)

Usage

Flammability and Explosibility

Nonflammable

InChI:InChI=1/C20H23N3O3/c1-20(2,3)14-11-13(9-10-18(24)26-4)12-17(19(14)25)23-21-15-7-5-6-8-16(15)22-23/h5-8,11-12,25H,9-10H2,1-4H3

Upstream product

• 119-66-4 2-nitrobenzenediazonium chloride 
• 88-74-4 2-nitro-aniline 
• 134440-55-4 C₂₀H₂₃N₃O₅ 
• 36837-50-0 methyl 3-(3-tert-butyl-4-hydroxyphenyl)propionate 
• 6386-38-5 methyl 3-(4-hydroxy-3,5-di-tert-butyl)phenylpropanoate 
• 67-56-1 methanol 
• 84268-36-0 3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxy-benzenepropanoic acid 
• 84268-23-5 2-(3'-tert-butyl-2'-hydroxy-5'-(2-octyloxycarbonylethyl)phenyl)-benzotriazole 

Downstream Products

• 131806-85-4 1-Methoxy-2,2,6,6-tetramethylpiperidin-4-yl 3-(2H-Benzotriazol-2-yl)-5-tert-butyl-4-hydroxyhydrocinnamate 
• 1250863-75-2 C₃₄H₅₁N₃O₁₀ 
• 84268-36-0 3-(2H-benzotriazol-2-yl)-5-(1,1-dimethylethyl)-4-hydroxy-benzenepropanoic acid 
• 131806-88-7 N-(1-octyloxy-2,2,6,6-tetramethylpiperidin-4-yl)-3-(2H-benzotriazol-2-yl)-5-tert-butyl-4-hydroxyhydrocinnamamide 
• 84268-23-5 2-(3'-tert-butyl-2'-hydroxy-5'-(2-octyloxycarbonylethyl)phenyl)-benzotriazole 

Relevant articles and documents

Preparation method 3 - [3 - (benzotriazol -2 - yl) -4 - hydroxyl -5 -tert-butylphenyl] - propionate

The invention belongs to the technical field of organic synthesis and particularly relates to a preparation method of 3 - [3 - (benzotriazole -2 - yl) -4 - hydroxyl -5 -tert-butylphenyl] - propionate, taking 3 - [3 - (benzotriazol -2 - yl) -4 - hydroxy -5 -tert-butylphenyl] - propionic acid and methanol as raw materials. The product 3 - [3 - (benzotriazol -2 -yl) -4 - hydroxyl -5 -tert-butylphenyl] - propionate is prepared under the action of silica supported titanium sulfate, silica supported zirconium sulfate or a solid acid catalyst loaded with cerium sulfate with a high cerium sulfate. The invention relates to a method for synthesizing 3 - [3 - (benzotriazol -2 - yl) -4 - hydroxyl -5 -tert-butylphenyl] - propionate with simple operation and high selectivity.

Composition comprising pesticide and benzotriazole UV absorbers

The present invention relates to an agrochemical composition comprising pesticide and UV absorber. The invention furthermore relates to UV-absorbers and to the use thereof in agrochemical compositions. It moreover relates to a method of controlling phytopathogenic fungi and/or undesirable plant growth and/or undesirable insect or mite infestation and/or of regulating plant growth.

Processes for the preparation of benzotriazole UV absorbers

Provided is a process for preparing 2H-benzotriazole UV absorbers containing a perfluoroalkyl moiety at the 5-position of the benzo ring, for example a trifluoromethyl group, which involves diazotizing the perfluoroalkyl substituted o-nitroaniline using concentrated sulfuric acid plus sodium nitrite or nitrosylsulfuric acid to form the corresponding monoazobenzene intermediate via the diazonium salt intermediate which is reduced to the corresponding 5-perfluoroalkyl substituted 2H-benzotriazole UV absorber compound by conventional reduction means. Also provided is a novel one-pot, multiphase reaction for the preparation of 2(2-nitrophenylazo) substituted phenols, which are precursors for 2H-benzotriazole UV absorbers.