Abstract: The effects of pressure on the rates and decomposition products of the cis and trans isomers of rert-butyl 2-propyl-2-peroxypentenoate were determined using the solvent cumene. The data indicate that both isomers decompose by one-bond 0-0 scission to yield geminate vinylcarboxy and rerr-butoxy radicals. The isomeric vinylcarboxy radicals appear to have different reactivities. The data indicate that the initially formed geminate pairs ...
