Unusual Solvent Effect on a SN2 Reaction. A Quantum-Mechanical and Kinetic Study of the Menshutkin Reaction between 2-Amino-1-methylbenzimidazole and Iodomethane in the Gas Phase and in Acetonitrile

2006 ◽  
Vol 110 (4) ◽  
pp. 1877-1888 ◽  
Author(s):  
André Melo ◽  
António J. I. Alfaia ◽  
João Carlos R. Reis ◽  
António R. T. Calado
1981 ◽  
Vol 46 (8) ◽  
pp. 1941-1946 ◽  
Author(s):  
Karel Setínek

A series of differently crosslinked macroporous 2,3-epoxypropyl methacrylate-ethylenedimethacrylate copolymers with chemically bonded propylsulphonic acid groups were used as catalysts for the kinetic study of reesterification of ethyl acetate by n-propanol in the liquid phase at 52 °C and in the gas phase at 90 °C. Analysis of kinetic data by the method of nonlinear regression for a series of equations of the Langmuir-Hinshelwood type showed that kinetic equations which describe best the course of the reaction are the same as for the earlier studied sulphonated macroporous styrene-divinylbenzene copolymers. Compared types of catalysts differ, however, in the dependence of their activity on the degree of crosslinking of the copolymer used.


1989 ◽  
Vol 54 (11) ◽  
pp. 2933-2950
Author(s):  
Emerich Erdös ◽  
Petr Voňka ◽  
Josef Stejskal ◽  
Přemysl Klíma

This paper represents a continuation and ending of the kinetic study of the gallium arsenide formation, where a so-called inhomogeneous model is proposed and quantitatively formulated in five variants, in which two kinds of active centres appear. This model is compared both with the experimental data and with the previous sequence of homogeneous models.


2004 ◽  
Vol 108 (34) ◽  
pp. 7027-7031 ◽  
Author(s):  
Alfonso Aranda ◽  
Yolanda Díaz de Mera ◽  
Ana Rodríguez ◽  
Lorena Morales ◽  
Ernesto Martínez

1984 ◽  
Vol 106 (10) ◽  
pp. 3049-3050 ◽  
Author(s):  
Jayaraman Chandrasekhar ◽  
Scott F. Smith ◽  
William L. Jorgensen

2005 ◽  
Vol 44 (16) ◽  
pp. 6075-6085 ◽  
Author(s):  
Gustavo E. Imoberdorf ◽  
Horacio A. Irazoqui ◽  
Alberto E. Cassano ◽  
Orlando M. Alfano

2012 ◽  
Vol 60 ◽  
pp. 460-466 ◽  
Author(s):  
Chenxi Zhang ◽  
Wenbo Yang ◽  
Jing Bai ◽  
Yuyang Zhao ◽  
Chen Gong ◽  
...  

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