In order to clarify substituent effects of alkyl groups on the decomposition of various tert-alkyl peroxides (RCMeZOOR), the decomposition of 1-methoxy-1-(tert-alky1peroxy) cyclohexanes 3 and 1, l-bis (tert-alky1peroxy) cyclohexanes 4 has been studied by use of methods of kinetics and product analysis in cumene with the range of temperatures from 80- 110" C and compared with those of the corresponding peroxyesters (1; R'= CO-t-Bu) and ...