Oxidation system containing a macrocyclic metal complex, the production thereof and its use

An oxidizing system comprising the three components

• 1) a macrocyclic metal complex of the general formula (I)
• where
• Y1, Y3 and Y4 are each independently a single bond or a bridge member which contains 1, 2 or 3 carbon atoms in the bridge,
• Y2 is a bridge member having at least 1 carbon atom in the bridge,
• R is independently in each occurrence hydrogen, alkyl, cycloalkyl, cycloalkenyl, alkenyl, aryl, alkynyl, alkylaryl, halogen, alkoxy, phenoxy, CH2CF3 or CF3 or two R radicals which are bound to the same carbon atom combine to form a substituted or unsubstituted benzene, cycloalkyl or cycloalkenyl ring, the carbon atom to which the two R radicals are bound being part of the benzene, cycloalkyl or cycloalkenyl ring,
• M is a transition metal in the oxidation states I, II, III, IV, V or VI or is selected from groups 6, 7, 8, 9, 10 and 11 of the periodic table,
• Q is a counterion which balances the charge of the macrocyclic metal complex on a stoichiometric basis, and
• L is a further ligand.
• 2) an oxidizing agent, and
• 3) an oxidation-enhancing compound.