83573-67-5

Upstream product

• 83044-89-7 2-(3'-tert-butyl-2'-hydroxy-5'-(2-octyloxycarbonylethyl)phenyl)-5-chloro-benzotriazole 

Downstream Products

• 84268-20-2 2-[2-hydroxy-3-tert.-butyl-5-(2-carbododecyloxyethyl)-phenyl]-5-chlorobenztriazole 
• 83044-91-1 5-Chloro-2-[2-hydroxy-3-tert-butyl-5-(2-methoxycarbonylethyl)-phenyl]-2H-benzotriazole 
• 468103-25-5 1-methoxy-2,2,6,6-tetramethylpiperidin-4-yl 3-(5-chlorobenzotriazol-2-yl)-5-tert-butyl-4-hydroxyhydrocinnamate 
• 1026193-30-5 1-(2-nitro-4-chlorophenoxy)-2,2,6,6-tetramethylpiperidin-4-yl 3-(5-chloro-benzotriazol-2-yl)-5-tert-butyl-4-hydroxyhydrocinnamate 
• 1026398-83-3 1-(2,4-dibromophenoxy)-2,2,6,6-tetramethylpiperidin-4-yl 3-(5-chlorobenzo-triazol-2-yl)-5-tert-butyl-4-hydroxyhydrocinnamate 

Relevant academic research and scientific papers

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.

Isocyanuric acid derivative useful as a light stabilizer

Tris[2-hydroxy-3-(2,2,6,6-tetramethyl-4-piperidylamino)propyl] isocyanurate is useful as a light stabilizer for organic materials. A composition comprising an organic material and the isocyanurate is stable against light and also excellent in heat resistance. The isocyanurate can be produced by the reaction between tris(2,3-epoxypropyl) isocyanurate and 4-amino-2,2,6,6-tetramethylpiperidine.