PYRIMIDIN-4-ONE DERIVATIVES AS PESTICIDE

摘要

Novel pyrimidin-4-one derivatives of formula (I), wherein: R1=C1-C8alkyl, C2-C8alkenyl, C2-C8alkynyl, C3-C6cycloalkyl, each of which is unsubstituted or substituted by halogen, O-C1-C4alkyl, O-C1-C4haloalky, O-C1-C4alkoxy, S-C1-C4alkyl, SO-C1-C4alkyl, SO2-C1-C4alkyl, CO-C1C4alkyl, N=C1-C4alkyl, NH-C1-C4alkyl, N(C1-C4alkyl)2, COO-C1-C4alkyl, COO-aryl, cyano, nitro, Si-(C1-C4alkyl)3, phenyl, halophenyl, phenoxyphenyl, halophenoxyphenyl, naphthyl; R2=OR5, SR6, NR7R8; R3 and R4 are each independently of the other hydrogen, halogen, C1-C4alkyl, C1-C4haloalkyl, C2-C4alkenyl, C2-C4haloalkenyl, C2-C4alkynyl, C2-C4haloalkynyl, Si-(C1-C6alkyl)3, COO-C1-C4alkyl, COO-aryl, COOH, CH=N-C1-C4alkyl, C(CH3)=N-C1-C4alkyl, SO-C1-C4alkyl, SO2-C1-C4alkyl, OR5, SR6, NR7R8, COR9; R9=hydrogen, C1-C4alkyl, phenyl, benzyl; R5 and R6 are each independently of the other C1-C6alkyl, C2-C6alkenyl, C2-C6alkynyl, C3-C6cycloalkyl, each of which is unsubstituted or substituted by halogen, O-C1-C4alkyl, O-C1-C4haloalkyl, O-C1-C4alkoxy, S-C1-C4alkyl, SO-C1-C4alkyl, SO2-C1-C4alkyl, CO-C1-C4alkyl, N=C1-C4alkyl, NH-C1-C4alkyl, N(C1-C4alkyl)2, COO-C1-C4alkyl, COO-aryl, cyano, nitro, Si-(C1-C4alkyl)3, phenyl, halophenyl, phenoxyphenyl, halophenoxyphenyl, naphthyl; R7 and R8 are each independently of the other C1-C6alkyl, C2-C6alkenyl, C2-C6alkynyl, C3-C6cycloalkyl, each of which is unsubstituted or substituted by halogen, O-C1-C4alkyl, O-C1-C4haloalkyl, O-C1-C4alkoxy, S-C1-C4alkyl, SO-C1-C4alkyl, SO2-C1-C4alkyl, CO-C1-C4-alkyl, N=C1-C4alkyl, NH-C1-C4alkyl, N(C1-C4alkyl)2, COO-C1-C4alkyl, COO-aryl, cyano, nitro, Si-(C1-C4alkyl)3, phenyl, halophenyl, phenoxyphenyl, halophenoxyphenyl, naphthyl; A = is a 5-membered heterocyclic ring which may be saturated or unsaturated, aromatic or non-aromatic and which may contain one or two hetero atoms O, S and/or N, each in the free form or in salt form. The novel compounds have plant-protective properties and are suitable for protecting plants against infestation by phytopathogenic micro-organisms, in particular fungi.