Abstract: Compounds of the formula ##EQU1## WHEREIN R is a hydrocarbyl radical selected from the group consisting of alkyl, aralkyl and cycloalkyl having from 3 to 12 carbon atoms and n is an integer from 1 to 9 are prepared by reacting a 1,1-bis (hydrocarbyl peroxy) cycloalkane with cycloaliphatic ketones in the presence of a molybdenum containing catalyst. The 1,1-bis (hydrocarbyl peroxy) cycloalkane can be prepared in situ from an organic hydroperoxide and a cycloalkanone. The compounds have utility as solvents and certain specific members of the class have utility as intermediates to adipic acid by further oxidation or as an intermediate to 2-t-butoxyphenol by known dehydrogenation methods.