Process for the preparation of substituted aminocarbonyltriazolinones

A process for the preparation of an aminocarbonyltriazolinone of the formula ##STR7## wherein R.sup.1 represents C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.6 -alkylthio, C.sub.1 -C.sub.6 -alkylamino or C.sub.1 -C.sub.6 -dialkylamino, wherein each of which is optionally substituted by cyano, halogen or C.sub.1 -C.sub.4 -alkoxy,

• R.sup.2 represents C.sub.1 -C.sub.12 -alkyl, C.sub.2 -C.sub.12 -alkenyl, or C.sub.2 -C.sub.12 -alkynyl, wherein said alkyl, alkenyl, or alkynyl groups are optionally substituted by cyano or halogen, or optionally substituted C.sub.3 -C.sub.6 -cycloalkyl, optionally substituted C.sub.3 -C.sub.6 -cycloalkyl-C.sub.1 -C.sub.4 -alkyl, optionally substituted phenyl-C.sub.1 -C.sub.4 -alkyl, or optionally substituted phenyl-C.sub.2 -C.sub.4 -alkynyl wherein said optional substituent is selected from the group consisting of cyano, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -halogenoalkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 C.sub.4 -halogenalkoxy,
• which consists essentially of reacting a triazolinone of the formula ##STR8## with an isocyanate of the formula
• O.dbd.C.dbd.N--R.sup.2 (III)
• in the presence of a reaction auxiliary, a basic compound and optionally a diluent, wherein said reaction auxiliary is metal compound selected from the corresponding hydride, hydroxide, acetate, carbonate, sulphate and halide of lithium, sodium, magnesium and aluminum and wherein said basic compound is an inorganic or organic base.