申请人:Dainippon Ink and Chemical, Inc.
公开号:US06281231B1
公开(公告)日:2001-08-28
The object is to provide a novel compound, with which there is little possibility of phytotoxicity for crop plants, and which is greatly effective in controlling various plant diseases caused by viruses pathogenic to plants, by bacteria, and by molds, and to provide agricultural chemicals, particularly agents for controlling plant diseases, containing this compound, 2,6-dichloro-4-pyridinemethanol, and/or a benzoic acid ester thereof as an active ingredient. As means for achieving the object, 2,6-dichloro-4-pyridinemethanol derivatives, 2,6-dichloro-4-pyridinemethanol, benzoic acid esters thereof, and agricultural chemicals containing these compounds as active ingredients are provided, the 2,6-dichloro-4-pyridinemethanol derivative being expressed by general formula (1):
wherein W denotes an optionally substituted C1 to C8 alkyl group, a trifluoromethylpyridyl group, —COR1, —SO2R2, —PO(OR3)2, —CONHR4, —COOR4, —COCOR4, or —SiR5R6R7, in which: R1 denotes an optionally substituted C1 to C18 alkyl group, an optionally substituted C1 to C18 alkenyl group, a phenyl group which has one or more specific substituent groups, or a 5- or 6-membered heterocyclic ring residue which has any one of a nitrogen atom, an oxygen atom, or a sulfur atom as a ring component atom; R2 denotes an alkyl group or a phenyl group; R3 denotes an alkyl group; R4 denotes an alkyl group or a phenyl group; and each of R5 to R7 denotes an alkyl group.
本发明的目的是提供一种新型化合物,该化合物对作物植物具有很小的植物毒性可能性,并且在控制由病毒、细菌和霉菌引起的各种植物疾病方面具有极大的有效性,并提供含有此化合物2,6-二氯-4-吡啶甲醇和/或其苯甲酸酯作为活性成分的农药化学品,特别是用于控制植物疾病的药剂。为了实现这一目的,提供了2,6-二氯-4-吡啶甲醇衍生物、2,6-二氯-4-吡啶甲醇、其苯甲酸酯以及含有这些化合物作为活性成分的农药化学品,其中2,6-二氯-4-吡啶甲醇衍生物由通式(1)表示:其中W表示可选取代的C1至C8烷基、三氟甲基吡啶基、—COR1、—SO2R2、—PO(OR3)2、—CONHR4、—COOR4、—COCOR4或—SiR5R6R7,其中:R1表示可选取代的C1至C18烷基、可选取代的C1至C18烯基、具有一个或多个特定取代基的苯基或具有氮原子、氧原子或硫原子中的任一种作为环组分原子的5-或6-成员杂环环残基;R2表示烷基或苯基;R3表示烷基;R4表示烷基或苯基;且R5至R7中的每一个表示烷基。