A peroxygen bleach activator comprising a compound of the general formula ##STR40## wherein R is a branched or linear alkyl or alkenyl group having from about 4 to about 14 carbon atoms; R1 is H, CH3, C2 H5 or C3 H7 ; and X' is Cl, OCH3 or OC2 H5 ; provided that at least one A is not H.