837-09-2

Upstream product

• 95-48-7 ortho-cresol 
• 98-83-9 isopropenylbenzene 
• 80-15-9 Cumene hydroperoxide 

Downstream Products

• 102116-83-6 2-Benzotriazol-2-yl-6-methyl-4-(1-methyl-1-phenyl-ethyl)-phenol 
• 20249-14-3 Tinuvin P 
• 73936-83-1 2-Methyl-4-(1-methyl-1-phenyl-ethyl)-6-(2-nitro-phenylazo)-phenol 

Relevant academic research and scientific papers

Total Synthesis of Pyrolaside B: Phenol Trimerization through Sequenced Oxidative C?C and C?O Coupling

A facile method to oxidatively trimerize phenols using a catalytic aerobic copper system is described. The mechanism of this transformation was probed, yielding insight that enabled cross-coupling trimerizations. With this method, the natural product pyro

Electrophilic Aromatic Alkylation by Hydroperoxides. Competition between Ionic and Radical Mechanisms with Phenols

Tertiary hydroperoxides have been utilized for the electrophilic alkylation of activated aromatic substrates, particularly phenols and phenol ethers. Cumyl (1) and tert-butyl (2) hydroperoxides have shown a greatly different behavior as concerns the catalysis and the regioselectivity. The best catalyst for 1 is TiCl4, which is completely inactive with 2. With the latter an effective catalyst is FeCl3, which, however, can give rise to a combination of electrophilic and radical reactions with alkyl phenols. 2,2′-Dihydroxy-3,3′-di-tert-butyl-5,5′-dimethyldiphenyl is obtained in high yields from p-cresol.

Nuclear substituted salicylic acids and their salts

A nuclear substituted salicylic acid represented by the following general formula (I): STR1 (in the formula (I), R1 represents a methyl group, an isopropyl group, a tert-butyl group, a tert-amyl group, a tert-hexyl group, a tert-octyl group, an α, α-dialkylbenzyl group or a nuclear substituted α, α-dialkylbenzyl group; and R2 represents a tert-butyl group, a tert-amyl group, a tert-hexyl group, a tert-octyl group, an α, α-dialkylbenzyl group or a nuclear substituted α, α-dialkylbenzyl group) and a salt thereof are herein disclosed. The novel nuclear substituted salicylic acids and salts thereof according to the present invention have good solubility in water, organic solvents or organic polymeric compounds and, therefore, these compounds are very favorable as bactericidal and germicidal agents, stabilizers for polymeric compounds or color developing agents for recording materials.

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.

BENZYLPHENOL DERIVATIVES AS ANTIOXIDANTS FOR AUTOXIDATION OF TETRALIN.

A series of 4-benzylphenols, 2-methyl-4-benzylphenols, 4-methyl-2-benzylphenols and 4-methoxy-2-benzylphenols have been prepared and evaluated as antioxidants for tetralin at 60 degree C by means of an oxygen-absorption method. Very good activities have been observed with a series of 4-methoxy-2-benzylphenols. The electrochemical oxidation potentials of these compounds were determined using linear-sweep voltammetry. The antioxidative activities were found to correlate with both the **1**3C NMR chemical shifts ( delta ) of the ipsocarbon of the OH substituents and their peak potentials (E//p).