particularly advantageously the process can be carried out if triiodide i 3 u2212 is selected as the oxidising agent which is obtained in situ from an alkali iodide and h 2 o 2 the alkali iodide can thereby be used in a catalytic to stoichiometric amount of 0 1 to 100 by mol with respect to the amount of p benzoquinonedioxime in accordance with the equilibrium constants listed in table 2 the iodide which is primarily formed reacts spontaneously to form alkali triiodide a violet colouring by elemental iodide is therefore not observed the reaction of the triiodide obtained in this way with p benzoquinonedioxime leads selectively to the formation of poly n n diazadioxides and iodide ions as a result of a controlled addition of further hydrogen peroxide triiodide is formed anew from the iodide which is released a catalysis cycle results and lii nai ki rbi or csi can also be used in small amounts i e not stoichiometric dosages for the synthesis a preferred charge amount of the alkali iodide is 1 to 5 by mol with respect to the amount of p benzoquinonedioxime used the h 2 o 2 amount that is added typically amounts to 100 to 110 by mol with respect to p benzoquinonedioxime a preferred process variant is typically carried out as follows p benzoquinonedioxime or one of its nuclearly substituted derivatives is suspended in water and mixed with 1 to 5 by mol of an alkali iodide the well stirred suspension is then mixed with 100 to 110 by mol h 2 o 2 with respect to p benzoquinonedioxime used in the form of a 30 hydrogen peroxide solution at a temperature of between 10 and 65 u00b0 c for 2 to 4 hours after the addition has.