JOURNAL OF ORGANOMETALLIC CHEMISTRY, cilt.695, sa.2, ss.267-270, 2010 (SCI-Expanded)
The kinetics of C-S coupling of phenylmagnesium bromide with phenyl arenesulfonates has been studied in THF:toluene (7:10) at 90 degrees C. Kinetic data and Hammett relationship are consistent with an asynchronous S(N)a mechanism in which rate determining thiophilic attack of carbanion takes place much ahead of phenoxy group departure. (C) 2009 Elsevier B.V. All rights reserved.