(Z)-2-Methylbuten-1-yl(aryl)iodonium trifluoromethanesulfonates containing electron-withdrawing groups on the aryl moiety.
The crystal structures of [(Z)-2-methylbut-1-en-1-yl][4-(trifluoromethyl)phenyl]iodonium trifluoromethanesulfonate, C(12)H(13)F(3)I(+).CF(3)O(3)S(-), (I), (3,5-dichlorophenyl)[(Z)-2-methylbut-1-en-1-yl]iodonium trifluoromethanesulfonate, C(11)H(12)Cl(2)I(+).CF(3)O(3)S(-), (II), and bis[[3,5-bis(trifluoromethyl)phenyl][(Z)-2-methylbut-1-en-1-yl]iodonium] bis(trifluoromethanesulfonate) dichloromethane solvate, 2C(13)H(12)F(6)I(+).2CF(3)O(3)S(-).CH(2)Cl(2), (III), are described. Neither simple acyclic beta,beta-dialkyl-substituted alkenyl(aryl)idonium salts nor a series containing electron-deficient aryl rings have been described prior to this work. Compounds (I)-(III) were found to have distorted square-planar geometries, with each I atom interacting with two trifluoromethanesulfonate counter-ions.
Hinkle
Robert J
RJ
Department of Chemistry, College of William and Mary, Williamsburg, VA 23187, USA. rjhink@wm.edu
McDonald
Robert
R