The ortho: Para Ratio in the Activation of the Nucleophilic Aromatic Substitution by the Nitro Group
The amount of substitution of the chlorine atoms of 2, 4-dichloronitrobenzene-4-Cl36 by piperidine in benzene and methanol has been determined by a radiochemical method. The results have been compared with the reactions of o- and p-chloronitrobenzene with piperidine in the same solvents and in ethan...
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| Formato: | Capítulo de libro |
| Lenguaje: | Inglés |
| Publicado: |
1962
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
| Aporte de: | Registro referencial: Solicitar el recurso aquí |
| Sumario: | The amount of substitution of the chlorine atoms of 2, 4-dichloronitrobenzene-4-Cl36 by piperidine in benzene and methanol has been determined by a radiochemical method. The results have been compared with the reactions of o- and p-chloronitrobenzene with piperidine in the same solvents and in ethanol. It is concluded that while the change from benzene to methanol lowers the over-all rate of substitution, it enhances selectively the reactivity of the chlorine atom para to the nitro group. Reaction kinetics are tentatively explained and Arrhenius parameters presented. © 1962, American Chemical Society. All rights reserved. |
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| ISSN: | 00027863 |
| DOI: | 10.1021/ja00865a032 |