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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Autores principales: Greizerstein, W., Brieux, J.A.
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00027863_v84_n6_p1032_Greizerstein
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_00027863_v84_n6_p1032_Greizerstein2023-10-03T13:54:34Z The ortho: Para Ratio in the Activation of the Nucleophilic Aromatic Substitution by the Nitro Group Greizerstein, W. Brieux, J.A. 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. Fil:Greizerstein, W. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Brieux, J.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00027863_v84_n6_p1032_Greizerstein
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description 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.
format JOUR
author Greizerstein, W.
Brieux, J.A.
spellingShingle Greizerstein, W.
Brieux, J.A.
The ortho: Para Ratio in the Activation of the Nucleophilic Aromatic Substitution by the Nitro Group
author_facet Greizerstein, W.
Brieux, J.A.
author_sort Greizerstein, W.
title The ortho: Para Ratio in the Activation of the Nucleophilic Aromatic Substitution by the Nitro Group
title_short The ortho: Para Ratio in the Activation of the Nucleophilic Aromatic Substitution by the Nitro Group
title_full The ortho: Para Ratio in the Activation of the Nucleophilic Aromatic Substitution by the Nitro Group
title_fullStr The ortho: Para Ratio in the Activation of the Nucleophilic Aromatic Substitution by the Nitro Group
title_full_unstemmed The ortho: Para Ratio in the Activation of the Nucleophilic Aromatic Substitution by the Nitro Group
title_sort ortho: para ratio in the activation of the nucleophilic aromatic substitution by the nitro group
url http://hdl.handle.net/20.500.12110/paper_00027863_v84_n6_p1032_Greizerstein
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AT brieuxja theorthopararatiointheactivationofthenucleophilicaromaticsubstitutionbythenitrogroup
AT greizersteinw orthopararatiointheactivationofthenucleophilicaromaticsubstitutionbythenitrogroup
AT brieuxja orthopararatiointheactivationofthenucleophilicaromaticsubstitutionbythenitrogroup
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