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Title: Effect of substituents on kinetics of bimolecular nucleophilic substitution reaction involving p-substituted phenacyl bromides and 2-substituted benzimidazoles
Authors: Winston, S John
Rao, P Jayaprakash
Sethuram, B
Rao, T Navaneeth
Issue Date: Jun-1989
Publisher: NISCAIR-CSIR, India
Abstract: The second order rate constants and activation parameters for the reaction of various p-substituted phenacyl bromides with 2-substituted benzirnidazoles have been measured in 90% acetone-10% water (v/v) medium at different temperatures. The rate constants for the reaction of substitute phenacyl bromides with a given benzimidazole fit well into the Hammett equation while those for the reaction of 2-substituted benzimidazoles with a given phenacyl bromide do not do so. The ρ-values for various phenacyl bromides with each benzimidazole have been calculated and art found to be very close.
Page(s): 520-522
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.28A(06) [June 1989]

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