Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/97987
Type: Artigo de periódico
Title: The Reactivity Of Some Primary Amines In Sn2ar Reactions With 2- And 4-chloro-1-methylpyridinium Ions
Author: Souza Brenelli E.C.
Samenho Moran P.J.
Abstract: Rate constants for the SN2Ar reactions of 2- and 4-chloro-1-methylpyridinium ions with butylamine, glycine, glycylglycine, and ethylenediamine monohydrochloride, in water at 1.0 mol dm-3 constant ionic strength and 25 °C have been determined. For all amines studied k obs is found to be related to free-amine concentration, [A], as kobs = k0 + k1[A]. The 2-isomer was always more reactive than the 4-isomer. The Brønsted β coefficients are 0.66 for the 2-isomer and 0.49 for the 4-isomer. These reactions seem to be charge-controlled. From the derived Edwards-equation results one could infer that the 2-isomer might tend to interact by way of its charge more than the 4-isomer.
Editor: 
Rights: aberto
Identifier DOI: 
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-37049081470&partnerID=40&md5=9c19e738ca8ba1ba13a28ef82fb355f4
Date Issue: 1989
Appears in Collections:Unicamp - Artigos e Outros Documentos

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