| Article |
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| Article name |
The Study of the Kinetics of the Reaction between Benzilidenanilin and Antipyrine |
| Authors |
Letunov V.I. Candidate of Science (Chemistry), professor of the department chemistry, chemistry@chitgu.ruKulakova A.A. graduate student, kulakowa86@mail.ru |
| Bibliographic description |
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| Section |
Chemistry |
| UDK |
547.772.2+543.4+544.4 |
| DOI |
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| Article type |
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| Annotation |
The study describes the kinetics of the interaction between benzilidenanilin and
antipyrine. The kinetic curves are based on the analysis of the data obtained. The kinetic
curves have 2 sections: curvilinear and rectilinear. The curvilinear section corresponds
to the overall reaction order equal to 5: the first – regarding benzilidenanilin, antipyrine
and the solvent (alcohol), the second – regarding the acid used as a catalyst. The reaction
order is zero in the rectilinear section. This fact suggests that the reaction proceeds in
two stages. In the first stage, protonated Schiff base, interacting with the nucleophile
(alcohol, antipyrine) is transformed into an active state and by hydrogen bonds forms an
intermediate complex with the protonated antipyrine. The participation of antipyrine in
the transformation of protonated Schiff base into the activated state is verified by the fact
that an excess of antipyrine or the introduction of DMSO or DMF leads to the curvilinear
section disappearance. The complex is monomolecularly transformed into a reaction
product – fenilfenilamino – 4 – antipirilmetan. The study offers a scheme of interaction.
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| Key words |
kinetics, reaction order, intermediate complex, hydrogen bonds. |
| Article information |
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| References |
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| Full article | The Study of the Kinetics of the Reaction between Benzilidenanilin and Antipyrine |
