Leaving group effect in the sulfonyl transfer reactions of aryl benzenesulfonates with Grignard reagents |
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| Authors: | Fatma Ero?lu Didem Kahya and Ender Erdik |
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| Institution: | (1) Science Faculty, Ankara University, 06100 Besevler, Ankara, Turkey; |
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| Abstract: | The C–S coupling reactions of aryl benzenesulfonates with phenylmagnesium bromide in THF:toluene (7:10) at 90 °C have been
studied. A Hammett-type kinetic study of the leaving group effect of aryloxy groups provides a conclusive support for a two
step addition-elimination mechanism in which C–S bond formation is rate determining step. |
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