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Mechanism of aromatic alkylation—V by Viorica Ioan; D. Săndulescu; S. Titeica; C.D. Nenitzescu is a Chemistry article available to read on EtoBox.

What is Mechanism of aromatic alkylation—V about?

Kinetic measurements on the alkylation reaction of mesitylene and pentamethylbenzene with p-chlorobenzyl and m-nitrobenzyl benzenesulphonates were performed, under the catalytical action of benzenesulphonic acid in dichloroethane. It was established that in the rate equation the concentration of the sulphonic ester enters at the first power and the concentration of the acid catalyst at the second power, while the aromatic hydrocarbon is involved in a more complicated function. Starting from the idea that for the ionization of the benzenesulphonic ester two molecules of acid are necessary, one of which serves for solvation of the anion and the other for solvation of the cation, and that these two thus solvated ions remains bound as an ion pair in a cage of solvent molecules, a kinetic equation is established, in which the reaction rate appears as a hyperbolic function of the concentration of the aromatic hydrocarbon. This equation accounts well for the experimental facts.

Who reads Mechanism of aromatic alkylation—V?

Author

Viorica Ioan; D. Săndulescu; S. Titeica; C.D. Nenitzescu

Publisher

Elsevier Science; Elsevier ; Elsevier Ltd.; Elsevier BV (ISSN 0040-4020)

Published

1963

Language

RU

Field

Chemistry (Physical Sciences)