Rates of solvolysis in 90% aqueous acetone have been determined for m-and p-carboxyl-, nz-and p-carbomethoxy-, m-and p-carboethoxy-, m-and p-cyano, and m-and p- trifluoromethylphenyldimethylcarbinyl chlorides. In each case the para derivative solvolyzes at a slower rate than the related meta compound, corresponding to the meta orientation exhibited by these groups in electrophilic aromatic substitution. The decrease in solvolysis ...