Patent ID: 6362337
Filing Date: 2002-03-26
Classification: A01N,C07D

Abstract:
A process for preparing a substituted phenyluracil of the formula (I), wherein n represents the numbers 0, 1, 2 or 3, Q represents oxygen or sulphur, R1 represents hydrogen, represents amino or represents unsubstituted or cyano-, fluorine-, or chlorine-substituted alkyl having 1 to 4 carbon atoms, R2 represents cyano, carboxyl, carbamoyl, thiocarbamoyl or represents in each case unsubstituted or cyano-, fluorine- or chlorine-substituted alkyl or alkylcarbonyl having in each case up to 4 carbon atoms, R3 represents hydrogen, fluorine, chlorine, bromine or alkyl having 1 to 4 carbon atoms, R4 represents nitro, amino, hydroxyl, carboxyl, cyano, carbamoyl, thiocarbamoyl, sulfo, chlorosulphonyl, aminosulphonyl, halogen, or represents in each case unsubstituted or cyano-, halogen- or C1-C4-alkoxy-substituted alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, alkylamino, alkylcarbonyl, alkoxycarbonyl, alkylaminocarbonyl, alkylcarbonylamino, alkoxycarbonylamino, alkylsulphonylamino, bis-alkylcarbonyl-amino, bis-alkylsulphonyl-amino or N-alkylcarbonyl-N-alkylsulphonyl-amino having in each case up to 5 carbon atoms in the alkyl groups, and R5 represents hydrogen, represents in each case unsubstituted or cyano-, halogen- or C1-C4-alkoxy-substituted alkyl, alkoxy, alkylthio, alkylamino or dialkylamino having in each case 1 to 5 carbon atoms, represents in each case optionally cyano- or halogen-substituted alkenyl, alkenyloxy, alkenylamino, alkinyl, alkinyloxy or alkinylamino having in each case up to 5 carbon atoms, represents in each case unsubstituted or cyano-, halogen- or C1-C4-alkyl-substituted cycloalkyl, cycloalkyloxy, cycloalkylamino, cycloalkylalkyl, cycloalkylalkoxy or cycloalkylalkylamino having in each case 3 to 6 carbon atoms in the cycloalkyl groups and 0 to 3 carbon atoms in the alkyl moieties, represents in each case unsubstituted or nitro-, cyano-, halogen-, C1-C4-alkyl-, C1-C4-halogenoalkyl-, C1-C4-alkoxy-, C1-C4-halogenoalkoxy-, C1-C4-alkylthio-, C1-C4-halogenoalkylthio-, C1-C4-alkylsulphinyl-, C1-C4-halogenoalkylsulphinyl-, C1-C4-alkylsulphonyl-, C1-C4-halogenoalkylsulphonyl- or phenyl-substituted aryl, aryloxy, arylthio, arylamino, arylalkyl, arylalkoxy, arylalkylthio or arylalkylamino having in each case 6 or 10 carbon atoms in the aryl groups and 0 to 3 carbon atoms in the alkyl moieties, or represents in each case unsubstituted or cyano-, halogen-, C1-C4-alkyl-, C1-C4-halogenoalkyl-, C1-C4-alkoxy- or C1-C4-halogenoalkoxy-substituted heterocyclyl or heterocyclylalkyl from the group consisting of furyl, tetrahydrofuryl, furyl-C1-C4-alkyl, benzofuryl, benzofuryl-C1-C4-alkyl, thienyl, thienyl-C1-C4-alkyl, benzothienyl, benzothienyl-C1-C4-alkyl, oxazolyl, oxazolyl-C1-C4-alkyl, benzoxazolyl, benzoxazolyl-C1-C4-alkyl, isoxazolyl, isoxazolyl-C1-C4-alkyl, benzisoxazolyl, benzisoxazolyl-C1-C4-alkyl, thiazolyl, thiazolyl-C1-C4-alkyl, benzothiazolyl, benzothiazolyl-C1-C4-alkyl, pyrazolyl, pyrazolyl-C1-C4-alkyl, oxadiazolyl, oxadiazolyl-C1-C4-alkyl, thiadiazolyl, thiadiazolyl-C1-C4-alkyl, pyridyl, pyridyl-C1-C4-alkyl, quinolyl, quinolyl-C1-C4-alkyl, pyrimidyl, pyrimidyl-C1-C4-alkyl; comprising the step of reacting a hydroxyphenyluracil of the formula (II) whereinn, R1, R2, R3 and R4 are as defined above, with an acylating agent of the formula (III) whereinR5 is as defined above and X represents halogen.