Cycloalkaneformyl (13-7) and cycloalkaneacetyl (II& 6) peroxides were prepared and their products and rates of decomposition in carbon tetrachloride studied. A large variation in rate (102) was observed for type I peroxides, IS being remarkably slow. But the cycle-propyl radical, once formed, reacted with the solvent (giving cyclopropyl chloride) rather than isomerize to the more stable allyl radical. In anhydrous carbon tetrachloride containing ...