BigPatents India

The invention relates to a method for producing acyl urea derivatives of formula (I), wherein the symbols and the indices have the designations cited in the description. According to said method, a compound of formula (II), wherein the symbols and indices have the designations cited in the description, is reacted in the presence of a base with a compound of formula (III), X-CO-NR<3>R<4>, wherein X represents (IV), (V), or -0-R<7>; R<7> represents (C1-C8)-alkyl, (C3-C6)-alkenyl, (C3-C6)-alkinyl, (C3-C8)-cycloalkyl, (C3-C6)-cycloalkyl-(C1-C4)-alkyl, aryl or heterocyclyl, the cited groups being unsubstituted or substituted by the groups halogen, CN and NO2; and R<3>, R<4> have the designations cited for formula (I). The compounds of formula (I) are partially novel and suitable for pest control.