Asymmetrical cationic bleach activators and compositions employing the same

摘要

Asymmetrical cationic bleach activators are provided. The compounds have the formula: (Q-E-C(O)-L-C(O)-R<1>)(Y)1/a, wherein L is selected from the group consisting of: (a), (b), (c), (d) and (e), wherein Q has the formula R<3>R<4>R<5>N<+> wherein any of R<3>, R<4> and R<5> is independently selected from the group consisting of substituted or unsubstituted alkyl, alkaryl and aryl; E is a substituted or unsubstituted polyalkylene, arylalkylene, alkylenearyl, arylpolyalkylene, polyalkylenearylaklylene or polyalkylenearylpolyalkylene; a is 1 or higher; (Y)1/a is a charge-balancing compatible anion; R<2>, when present, is independently selected from the group consisting of C1-C8 linear or branched chain saturated or unsaturated alkyl, alkaryl, aralkyl and aryl; R<1> is a C1-C20 linear or branched chain saturated or unsaturated alkyl group; Z, when present, is selected from the group consisting of C2-C16 linear or branched, substituted or unsubstituted alkyl, alkaryl, aralkyl, aryl; and i, when present, is 0 or 1. Bleach additive and bleaching compositions including the asymmetrical cationic bleach activators and methods of cleaning fabrics are also provided.