PYRIMIDINE DERIVATIVES

摘要

The invention relates to certain pyrimidine derivatives of general formula (I), in which R<1>, R<2> and R<3> independently represent a hydrogen or halogen atom, nitro, cyano, hydroxyl, carboxyl or optionally substituted alkyl, alkenyl, alkynyl, alkoxy, amino, alkoxycarbonyl, alkanoyl, cycloalkyl, alkylthio, alkylsulphinyl, alkylsulphonyl, carbamoyl, alkylamido or phenyl group; n represents an integer from 1 to 3; R<4>, R<5>, R<6>, R<7>, R<8> and R<9> independently represent a hydrogen atom or an optionally substituted alkyl group; and R<10> and R<11> independently represent a hydrogen atom or an optionally substituted alkyl or aryl group; or R<10> and R<11> together represent an optionally substituted alkylene or alkenylene chain; with the proviso that R<7>, R<8>, R<9>, R<10> and R<11> do not simultaneously represent a hydrogen atom; processes for their preparation, compositions containing such compounds and their use as biocides.