申请人:Sankyo Company Limited
公开号:EP0493925A1
公开(公告)日:1992-07-08
Compounds of formula (I):
(in which: R¹ and R² are each hydrogen, optionally substituted alkyl, optionally substituted alkenyl, alkynyl, alkoxy, aryl or pyridyl, or R¹ and R² together represent alkylene; A and B are each hydrogen, halogen, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkoxy, alkylthio, alkylsulphonyl, dialkylsulphamoyl, aliphatic carboxylic acyl, carboxy, -CONRaRb where Ra and Rb are each hydrogen or alkyl, formyl or cyano groups; D represents optionally substituted phenyl, benzyl, pyridyl or pyrimidinyl; and n is 0, 1 or 2; and salts and esters thereof) have valuable herbicidal properties, and, since they are totally innocuous to rice plants, are especially useful for the treatment of paddy fields.
式(I)化合物:
其中R¹ 和 R² 分别为氢、任选取代的烷基、任选取代的烯基、炔基、烷氧基、芳基或
吡啶基,或 R¹ 和 R² 共同代表亚烷基;A 和 B 分别为氢、卤素、任选取代的烷基、任选取代的烯基、任选取代的烷氧基、烷
硫基、烷基磺酰基、二烷基磺酰基、脂肪族羧酰基、羧基、-CONRaRb,其中 Ra 和 Rb 分别为氢或烷基、甲酰基或
氰基;D 代表任选取代的苯基、苄基、
吡啶基或
嘧啶基;n 为 0、1 或 2;以及它们的盐和
酯类)具有重要的除草特性,由于它们对
水稻植物完全无害,因此特别适用于稻田处理。