UREA COMPOUNDS

摘要

Compounds of the general formula: in which R<1> represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms; R<2> represents a hydrogen atom, a methyl or a methoxy group; Ar represents an optionally substituted phenyl group or an optionally substituted heteroaromatic ring containing 1 or 2 oxygen, sulphur and/nitrogen atoms; each of X and Y independently represents a hydrogen or halogen atom or an alkyl, haloalkyl or alkoxy group; and one of A and B represents a group -CO-; -CR<3>(OR<4>)- or -CR<3>(SR<4>), in which R<3> represents a hydrogen atom or an alkyl group and R<4> represents a hydrogen atom, an alkyl, alkenyl, alkynyl or cycloalkyl group, an optionally substituted phenyl or benzyl group, or an acyl group derived from a carboxylic, sulphonic or phosphoric acid; -C(OR<5>)(OR<6>)-, -C(OR<5>)(SR<6>)- or -C(SR<5>)(SR<6>)-, in which each of R<5> and R<6> independently represents an alkyl group or together represent an alkylene group; -CH(CH2COOR<7>)- in which R<7> represents an alkyl group; or -(CNR<8>)- in which R<8> represents a group OR<4> or NHR<4>; and the other of A and B represents a group -CR<9>R<1><1>-CR<1><0>R<1><2>-, in which each of R<9>, R<1><0>, R<1><1> and R<1><2> independently represents a hydrogen atom or an alkyl group or R<1><1> and R<1><2> together represent a carbon-carbon bond, a -CH2- group or an oxygen atom exhibit herbicidal and fungicidal properties.