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Fatma Eroğlu Science Faculty, Ankara University, Beşevler, Ankara, 06100, Turkey

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Abstract

The reaction rate and thermodynamic parameters in the reaction of phenylmagnesium bromide with phenyl tosylate in THF:toluene binary solvents and also in toluene were analyzed. The relative changes in the rate constants are strictly bound to changes in the equilibrium constant of complex formation between the sulfonate and the Grignard reagent by replacement of a donor THF molecule as well as the transfer rate of the carbanion to the sulfonate in the complex. These results provide another support for asynchronous SNa mechanism comprising a four-center transition state mechanism.

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Reaction Kinetics, Mechanisms and Catalysis
Language English
Size B5
Year of
Foundation
1974
Volumes
per Year
1
Issues
per Year
6
Founder Akadémiai Kiadó
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Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
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Address
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Chief Executive Officer, Akadémiai Kiadó
ISSN 1878-5190 (Print)
ISSN 1878-5204 (Online)