The present invention provides novel pyridine derivatives, a formula of its salt and its preparation method: in the formula, R is hydrogen, hydroxy, alkoxy; R = 1 and R = 2. The same or different, hydrogen, alkoxy, halogen; W is oxygen, NH Z; methylene or nitrogen; X is halogen, alkyl, cycloalkyl, amido can be substituted by halogen, alkoxy substituted phenyl, benzyl; n is 0 or 1 - 3 integer. The invention of compounds and salts on the weeding effect of growth in water and dry the annual or perennial weeds with little dose can be excellent, and for rice, wheat, cotton and other crops, as a suitable herbicide active ingredients.
【技术实现步骤摘要】
【技术保护点】
一种具下述通式的吡啶衍生物及其盐,***式中,R为氢原子,羟基,烷氧基,烷氧基烷氧基,酰氧基烷氧基,可被取代的苄氧基,三甲基硅乙氧基,烷基磺酰氨基,烷硫基,可被取代的苯氧基,可被取代的苯硫基,或咪唑基;R↑[1]和R↑[2]相同或不同地,为一氢原子,烷氧基,卤素原子,烷基氨基,二烷基氨基,卤代烷氧基或烷基;W为一氧原子,NH基或一通式>NC(O)B(式中B为一氢原子或烷氧基)的基团;Z为一次甲基或氮原子;和X为一卤原子,一卤素取代的烷基,酰氨基,烷基,环烷基,卤代烷氧基,链烯氧基,炔氧基,烷氧基羰基,烷氧基,烷基氨基,二烷基氨基,苯基,取代的苯基,可被取代的苄基,可被取代的 ...
【技术特征摘要】
【专利技术属性】
技术研发人员:宫崎雅弘,松泽政文,鸟谷部启二,平田道弥,
申请(专利权)人:库米埃化学工业株式会社,依哈拉化学工业株式会社,
类型:发明
国别省市:JP[日本]
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