The rela-The relative reactivities of ethers and a-, 0-and y-methyallyl phenyl ether at 185 and 197" in diphenyl ether have been determined. method for following the reaction accurately using low concentrations (about 0.1 M) of substrate was developed. tive rates of rearrangement of allyl p-cresyl ether in twelve solvents also have been determined. the series of p-substituted allyl phenyl ethers can be correlated by the CT+ substituent ...