scholarly journals Acid-Catalyzed Oxidation of Olefins with Selenium Dioxide

1970 ◽  
Vol 43 (11) ◽  
pp. 3475-3479 ◽  
Author(s):  
Khan A. Javaid ◽  
Noboru Sonoda ◽  
Shigeru Tsutsumi
Keyword(s):  
Selenium Dioxide ◽  
Oxidation Of Olefins ◽  
Acid Catalyzed ◽  
Catalyzed Oxidation

scholarly journals A NEW ACID CATALYZED OXIDATION OF SOME ACETYLENIC COMPOUNDS WITH SELENIUM DIOXIDE

1972 ◽  
Vol 1 (3) ◽  
pp. 229-232 ◽  
Author(s):  
Noboru Sonoda ◽  
Yuji Yamamoto ◽  
Shinji Murai ◽  
Shigeru Tsutsumi
Keyword(s):  
Selenium Dioxide ◽  
Acid Catalyzed ◽  
Catalyzed Oxidation ◽  
Acetylenic Compounds

Selenium dioxide oxidations. III. Oxidation of olefins

1968 ◽  
Vol 33 (7) ◽  
pp. 2647-2655 ◽  
Author(s):  
John P. Schaefer ◽  
Bert Horvath ◽  
Howard P. Klein
Keyword(s):  
Selenium Dioxide ◽  
Oxidation Of Olefins

Le dimère de la cis dihydroxy-5,6 cyclohexène-2 dione-1,4

1969 ◽  
Vol 47 (5) ◽  
pp. 733-737 ◽  
Author(s):  
J. Y. Savoie ◽  
P. Brassard
Keyword(s):  
Solid State ◽  
Sodium Chlorate ◽  
Osmic Acid ◽  
Acid Catalyzed ◽  
Catalyzed Oxidation

The osmic acid catalyzed oxidation of p-benzoquinone by sodium chlorate has long been recognized to yield a dimeric substance. By using progressively more vigorous conditions of acetylation, it has been possible to prepare from it three acetates corresponding to the dimer and to products of increasing degrees of dehydration and aromatization. The compounds have now been identified as the tetraacetates of 1,2,6,7-tetrahydroxydibenzo-p-dioxine (2a), of 2-oxo-1,4a (trans),6,7-tetrahydroxy-1,2,4a,10a-tetrahydrodibenzo-cis-p-dioxinne (3) and of the monohemiacetal dimer of cis-5,6-dihydroxycyclohex-2-ene-1,4-dione(4b). The structure of the dimer in the solid state and in solution is discussed.

Kinetics and Mechanism of Oxidation of Selenium(IV) by Permanganate Ion in Aqueous Perchlorate Solutions

1993 ◽  
Vol 58 (3) ◽  
pp. 538-546 ◽  
Author(s):  
Refat M. Hassan ◽  
Sahr A. El-Gaiar ◽  
Abd El-Hady M. El-Summan
Keyword(s):  
Reaction Mechanism ◽  
Reaction Rate ◽  
Oxidation Process ◽  
Selenium Dioxide ◽  
Order Reaction ◽  
Acid Solutions ◽  
First Order ◽  
Acid Catalyzed ◽  
Mechanism Of Oxidation ◽  
Kinetics Of

The kinetics of permanganate oxidation of selenium dioxide in perchloric acid solutions at a constant ionic strength of 2.0 mol dm-3 has been investigated spectrophotometrically. A first-order reaction in [MnO4-] and fractional order with respect to selenium(IV) were observed. The reaction rate was found to be pH-independent at lower acid concentrations ([H+] < 0.5 mol dm-3) and was acid-catalyzed beyond this range. Addition of Mn2+ and F- ions leads to the prediction that MnO4- is the sole reactive species in the oxidation process. A tentative reaction mechanism consistent with the reaction kinetics has been proposed.

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