6386-61-4Relevant academic research and scientific papers
Mechanism of the antioxidative effect of bis(4-hydroxy-3,5-di-tert-butylphenyl) sulfide and polysulfides in cumene oxidation
Farzaliev,Allakhverdiev,Sattar-zade,Rzaeva
, p. 2083 - 2086 (2007/10/03)
Bis(4-hydroxy-3,5-di-tert-butylphenyl) sulfide and polysulfides were prepared, and their inhibiting power was studied in relation to the number of sulfur atoms.
Antioxidative properties of probucol estimated by the reactivity with superoxide and by electrochemical oxidation
Araki,Kitaoka
, p. 943 - 947 (2007/10/03)
The reaction of probucol with superoxide (O2.- was investigated in acetonitrile using both electron spin resonance (ESR) and electrochemical techniques. The formation of phenoxyl radical was observed during the reaction of probucol with O2.- by ESR spectroscopy. The reaction of probucol with O2.- in acetonitrile was followed by cyclic voltammetry. With the addition of probucol, the oxidation peak current of O2.- decreased concentration dependently. This suggests that probucol reacts with O2.-, that is, probucol scavenges O2.- in acetonitrile. 2,6-Di-tertbutyl-p-benzoquinone was identified as the major product of the reaction of probucol with O2.- in acetonitrile. Electrochemical oxidation of probucol was also performed. Probucol gives an irreversible oxidation peak at ca.+1.4V vs. the saturated calomel electrode in the cyclic voltammogram. Controlled-potential electrolysis was carried out at +1.2V in a divided cell. 2,6-Di-tert-butyl-p-benzoquinone, 4,4′-dithiobis(2,6-di-tert-butylphenol), and 4,4′-trithiobis(2,6-di-tert-butylphenol) were identified as the products of anodic oxidation. These redox properties of probucol may correlate with the physiological activities.
Reaction of 2,6-Di-tert-butylphenol with Sulfur in Dimethylformamide in the Presence of Oxygen
Bukharov, S. V.,Konoshenko, L. V.,Solov'eva, S. E.,Syakaev, V. V.,Chugunov, Yu. V.,Samuilov, Ya. D.
, p. 667 - 669 (2007/10/03)
Reaction of 2,6-di-tert-butylphenol with sulfur in dimethylformamide in the presence of atmospheric oxygen was studied.
Reaction of Sulfur with 2,6-Di-tert-butylphenol in Dipolar Aprotic Solvenys
Bukharov, S. V.,Konoshenko, L. V.,Solov'eva, S E.,Gainullin, V. I.,Syakaev, V. V.,Mannanov, T. G.,Chugunov, Yu. V.,Samuilov, Ya. D.
, p. 126 - 129 (2007/10/03)
In dipolar aprotic solvents 2,6-di-tert-butylphenol reversibly reacts with elemental sulfur to form a mixture of bis(3,5-di-tert-butyl-4-hydroxyphenyl) polysulfides. The reverse process is initiated by hydrogen sulfide, and removal of the latter from the reaction mixture makes possible the polysulfides to be obtained in nearly quantitative yield.
Oxidative Dehydrogenation of Sterically Hindered para-Substituted Phenols with 3,3′,5,5′-Tetra-tert-butyl-4,4′-diphenoquinone
Mukmeneva,Bukharov,Kadyrova,Zharkova,Gorshunova,Fazlieva
, p. 1486 - 1489 (2007/10/03)
The reactivity of 4-methyl-, 4-mercapto-, and 4-methoxymethyl-2,6-di-tert-butylphenols in oxidative dehydrogenation with 3,3′,5,5′-tetra-tert-butyl-4,4′-diphenoquinone was studied, and the structure of products was determined.
