- Electronic and hydrogen bonding effects on the chain-breaking activity of sulfur-containing phenolic antioxidants
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A kinetic and thermodynamic investigation of phenols para-substituted with thiyl (SR), sulfinyl (SOR), and sulfonyl (SO2R) groups and ortho-substituted with thiyl groups is reported. The effect of the sulfur substituents on the O-H bond dissoci
- Amorati, Riccardo,Fumo, Maria Grazia,Menichetti, Stefano,Mugnaini, Veronica,Pedulli, Gian Franco
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p. 6325 - 6332
(2007/10/03)
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- Mechanism of the antioxidative effect of bis(4-hydroxy-3,5-di-tert-butylphenyl) sulfide and polysulfides in cumene oxidation
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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.
- Farzaliev,Allakhverdiev,Sattar-zade,Rzaeva
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p. 2083 - 2086
(2007/10/03)
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- Reaction of Sulfur with 2,6-Di-tert-butylphenol in Dipolar Aprotic Solvenys
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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.
- 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.
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p. 126 - 129
(2007/10/03)
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- Oxidative Dehydrogenation of Sterically Hindered para-Substituted Phenols with 3,3′,5,5′-Tetra-tert-butyl-4,4′-diphenoquinone
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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.
- Mukmeneva,Bukharov,Kadyrova,Zharkova,Gorshunova,Fazlieva
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p. 1486 - 1489
(2007/10/03)
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