19072-70-9

Upstream product

• 128-39-2 2,6-di-tert-butylphenol 
• 123-38-6 propionaldehyde 
• 504-63-2 trimethyleneglycol 
• 107-18-6 allyl alcohol 

Downstream Products

• 719-22-2 2,6-Di-tert-butyl-1,4-benzoquinone 
• 2455-14-3 3,5,3',5'-tetra-tert-butyl-4,4'-diphenoquinone 
• 62267-41-8 2,6-di-t-butyl-4-<1-(3,5-di-t-butyl-4-hydroxyphenyl)propylidene>cyclohexa-2,5-dien-1-one 
• 74854-08-3 2,4,10,12-tetra-t-butyl-7-ethyl-14,15-dioxadispiro<5,1,5,2>pentadeca-1,4,9,12-tetraene-3,11-dione 

Relevant academic research and scientific papers

γ-hydroxypropylation of 2,6-dialkyl(aryl)phenols with allyl alcohol and its derivatives

The composition of the products of the reaction of 2,6-disubstituted phenols with allyl alcohol and its derivatives in an alkaline medium was investigated, the conditions for carrying out the reaction with the predominant formation of 4-(3-hydroxypropyl)-2,6-dialkyl(aryl)phenols were found, and its mechanism was suggested. The reaction was examined on an industrial scale. An important result is the practical demonstration of alkaline catalysis performed under homogeneous conditions with participation of phenols, when the used alkaline catalyst is recovered in the process without the formation of waste waters. Pleiades Publishing, Ltd., 2010.

Synthesis of 4-(ω-hydroxyalkyl)-2,6-di-tert-butylphenols and the properties of related sulfides

Reaction of 2,6-di-tert-butylphenol with aliphatic linear and branched diols in an alkaline medium at a temperature of 180-220°C leads to the formation of 4-(ω-hydroxyalkyl)-2,6-di-tert-butylphenols. The increase in the product yield and reducing the reaction temperature was reached at the catalysis of this reaction with zinc oxide. The structure of the diphenylalkane derivatives generated in side reaction was proved and the structural influence of the length of the aliphatic residue on the antioxidant effectiveness of the sulfides derived from the corresponding hydroxyalkylphenols was examined.

Oxidation of Bisphenols. II. Some Compounds Related to Galvinoxyl

The oxidation of a series of 4,4'-alkylidenebis(2,6-di-t-butylphenols) having increasing substitution of the central methylene carbon by alkyl groups is examined.In the monosubstituted compounds the stability of the monophenoxy radical increases with increase in the size of the substituent, while the stability of the galvinoxyl type radical decreases. β-Coupled products are only obtained from the ethylidene bisphenol, a result that can be correlated with e.s.r. hyperfine splitting constants.With increasing mono- or di-substitution bisspiroperoxides become the preferred oxidation products.The e.s.r. spectrum of an ethylenebisgalvinoxyl biradical is described