52938-75-7

Upstream product

• 98-54-4 para-tert-butylphenol 
• 98-83-9 isopropenylbenzene 

Downstream Products

• 73936-85-3 4-tert-Butyl-2-(1-methyl-1-phenyl-ethyl)-6-(2-nitro-phenylazo)-phenol 
• 1582788-11-1 bis[4-tert-butyl-2-{[4-(pent-4-enyloxy)phenylimino]methyl}-6-(2-phenylpropan-2-yl)phenoxy]titanium(IV) dichloride 
• 1582787-97-0 4-tert-butyl-2-{[4-(pent-4-enyloxy)phenylimino]methyl}-6-(2-phenylpropan-2-yl)phenol 
• 102116-79-0 2-(2H'-benzotriazol-2'-yl)-4-t-butyl-6-(α,α-dimethylbenzyl)phenol 
• 3147-76-0 2-(5-tert-butyl-2-hydroxyphenyl)benzotriazole 

Relevant academic research and scientific papers

Synthesis of chiral salan ligands with bulky substituents and their application in Cu-catalyzed asymmetric Henry reaction

Several new chiral N,N’-dimethylated salan ligands with bulky substituents were synthesized and their in-situ generated Cu(II) complexes were evaluated in the asymmetric Henry reaction. Substituents on the aryloxide moieties of these ligands were found to

Enantioselective nitroaldol reaction catalyzed by sterically modified salen-chromium complexes

A group of modified (salen)Cr(III)Cl complexes with bulky benzylic substituents in the 3,3'-position of the salicylidene moiety have been successfully applied for the asymmetric nitroaldol reaction. The readily accessible complex bearing 3-phenylpent-3-yl groups (2 mol %) leads to β-nitro alcohols in up to 92% yield and 94% ee.

Synthesis of salicylaldehydes bearing bulky substituents in the positions 3 and 5

Reaction of 2,4-disubstituted phenols with paraformaldehyde in the presence of SnCl4 and 2,6-lutidine afforded a number of new salicylaldehydes, containing bulky substituents (tert-butyl, 1-phenylethyl, 1-(4-tert- butylphenyl)ethyl, α-cumyl, and trityl) in the positions 3 and 5.

Preparation of Some 2-(2' H-Benzotriazol-2'-yl)phenol Ultraviolet Absorbers: Application of the Transalkylation Reaction

When 2-(2' H-benzotriazol-2'-yl)phenols containing t-alkyl substituents are warmed in toluene solution with an aluminium chloride/nitromethane catalyst, the t-alkyl groups are transferred to the solvent (toluene).This transalkylation reaction has been used to prepare not readily accessible or previously inaccessible 2-(2' H-benzotriazol-2'-yl)phenols, a class of ultraviolet absorbers widely used in industry.