Oxidations with Iodosobenzene Diacetate. IX. A Kinetic investigation of the reaction with substituted-2-Nitroanilines

1958 ◽  
Vol 11 (4) ◽  
pp. 485 ◽  
Author(s):  
KH Pausacker ◽  
JG Scroggie
Keyword(s):  
Acetic Acid ◽  
Reversible Reaction ◽  
Kinetic Investigation ◽  
Excellent Yield ◽  
Electrical Effect ◽  
Kinetics Of ◽  
Mechanism Of The Reaction

Benzofurazan oxides are formed in excellent yield when certain substituted-2-nitroanilines react with iodosobenzene diacetate in benzene containing 1 per cent. (by volume) of acetic acid. The kinetics of this reaction have been studied. It is considered that the mechanism of the reaction involves a reversible reaction of the 2-nitroaniline with iodosobenzene diacetate to form acetic acid and an intermediate which is then converted to benzofurazan oxide, iodobenzene, and acetic acid. This reaction is therefore similar to the reaction of iodosobenzene diacetate with glycols. The rates of oxidation of substituted-2-nitroanilines could not be correlated with the electrical effect of the substituent. The reasons for this are discussed in detail.

scholarly journals Cinétique de la formation de la métalloporphyrine Cu(II) – hématoporphyrine IX dans l'acide acétique aqueux

1975 ◽  
Vol 53 (16) ◽  
pp. 2375-2380 ◽  
Author(s):  
Guy Paquette ◽  
Miklos Zador
Keyword(s):  
Acetic Acid ◽  
Reactive Species ◽  
Acid Water ◽  
First Order ◽  
Water Solvent ◽  
Acetic Acid Water ◽  
Kinetics Of ◽  
Hematoporphyrin Ix ◽  
Mechanism Of The Reaction

The kinetics of interaction of hematoporphyrin IX with Cu(II) has been studied in an acetic acid – water solvent (50%–50% v/v). The reaction is of first order with respect to the porphyrin whereas the order with respect to copper(II) perchlorate is smaller than one. This is explained by taking into account the interaction between Cu2+ and acetic acid. The reactive species are Cu2+, CuOAc+, and free porphyrin. The mechanism of the reaction is compared to those proposed for similar systems.

The Chemistry of Vulcanization. IV. Action of 2-Mercaptobenzothiazole on the Reaction of Diphenylmethane and Sulfur

1958 ◽  
Vol 31 (4) ◽  
pp. 779-787 ◽  
Author(s):  
Jitsuo Tsurugi ◽  
Takeshige Nakabayashi
Keyword(s):  
Organic Chemistry ◽  
Zinc Oxide ◽  
Kinetic Investigation ◽  
Double Bonds ◽  
Excellent Model ◽  
Mechanism And Kinetics ◽  
Kinetics Of ◽  
Mechanism Of The Reaction

Abstract In Part I of this series, the mechanism of the reaction of diphenylmethane (DPM) and sulfur was discussed, and in Part II, a kinetic investigation was carried out. In this paper, the mechanism and kinetics of the reaction involving DPM, sulfur and 2-mercaptobenzothiazole (MBT) will be reported and compared with those of Parts I and II, respectively. Thus the accelerating effect of MBT has been elucidated clearly. DPM which has no olefinic double bonds but which has α-methylenic hydrogen adjacent to aromatic double bonds has been shown to be an excellent model for studying the mechanism of acceleration by the methods of organic chemistry. The significance of DPM as a model of rubber hydrocarbon in the presence of sulfur alone was discussed in Part I. British investigators using olefins such as dihydromyrcene and squalene as models studied the mechanism of acceleration. However, they could not deduce the mechanism so clearly as we in this paper, only because the reaction of olefins with sulfur seemed to be more complex than that of DPM. Investigations on the reaction of DPM, sulfur and accelerators in the presence of either zinc oxide or zinc soap will be reported in other papers of this series.

Kinetics and mechanism of the reaction of iron(III) with 6-methyl-2,4-heptanedione and 3,5-heptanedione

1990 ◽  
Vol 55 (8) ◽  
pp. 1984-1990 ◽  
Author(s):  
José M. Hernando ◽  
Olimpio Montero ◽  
Carlos Blanco
Keyword(s):  
Aqueous Solution ◽  
Metal Ion ◽  
Activation Parameters ◽  
Enol Form ◽  
Kinetics And Mechanism ◽  
Kinetic Constants ◽  
Steric Factors ◽  
Kinetics Of ◽  
Mechanism Of The Reaction

The kinetics of the reactions of iron(III) with 6-methyl-2,4-heptanedione and 3,5-heptanedione to form the corresponding monocomplexes have been studied spectrophotometrically in the range 5 °C to 16 °C at I 25 mol l-1 in aqueous solution. In the proposed mechanism for the two complexes, the enol form reacts with the metal ion by parallel acid-independent and inverse-acid paths. The kinetic constants for both pathways have been calculated at five temperatures. Activation parameters have also been calculated. The results are consistent with an associative activation for Fe(H2O)63+ and dissociative activation for Fe(H2O)5(OH)2+. The differences in the results for the complexes of heptanediones studied are interpreted in terms of steric factors.

Kinetics of the acid-catalyzed isomerization of phenylbutenes in glacial acetic acid

1972 ◽  
Vol 94 (4) ◽  
pp. 1247-1249 ◽  
Author(s):  
R. S. Schwartz ◽  
H. Yokokawa ◽  
E. W. Graham
Keyword(s):  
Acetic Acid ◽  
Glacial Acetic Acid ◽  
Acid Catalyzed ◽  
Kinetics Of

Kinetics of the oxidation of ethylbenzene by cobaltic acetate in acetic acid

1973 ◽  
pp. 1035 ◽  
Author(s):  
Jacques Hanotier ◽  
Monique Hanotier-Bridoux
Keyword(s):  
Acetic Acid ◽  
Oxidation Of Ethylbenzene ◽  
Kinetics Of

Kinetics of acetic acid esterification with propanol in the presence of supported molybdena catalysts

2014 ◽  
Vol 114 (1) ◽  
pp. 197-209 ◽  
Author(s):  
Gheorghita Mitran ◽  
Octavian Dumitru Pavel
Keyword(s):  
Acetic Acid ◽  
Kinetics Of ◽  
Acid Esterification

Kinetics of acetic acid-enhanced coarse limestone dissolution

2014 ◽  
Vol 6 (2) ◽  
pp. 119
Author(s):  
Shengyu Liu ◽  
Wei Qiu ◽  
Lichao Nengzi ◽  
Chengwei Lu ◽  
Bing Qu ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Limestone Dissolution ◽  
Kinetics Of
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