N-BENZYLIMINIUM SALTS USED AS BLEACH CATALYSTS

摘要

N-benzyliminium salts have formula (I), in which R<1> and R<2> represent independently from each other hydrogen or optionally substituted alkyl, alkenyl, cycloalkyl, aralkyl, heteroaralkyl, aryl or heteroaryl, provided that at least one of the rests R<1> or R<2> has at least 5 C atoms, if it is an aliphatic rest, or at least 7 C atoms, if it is a cyclic rest; R<3> stands for an organic or inorganic substituent; m equals 1, 2 or 3; and X stands for an oxidation-resistant anion, while n indicates the valence of anion X. These N-benzyliminium salts are used as bleach catalysts, in particular in textile washing and bleaching systems.