A number of iodomethyl sulfones have been prepared and converted to the corresponding iodoso chlorides (R'SOKH2-ICL). The rates of equilibration of these dichlorides with their components in a variety of polar solvents (acetic acid, acetonitrile and nitomethane) have been investigated by procedures used in earlier studies of iodobenzene dichloride and some of its ring substitution products. Like the iodobenzene dichlorides the iodomethyl ...