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    • 91. 发明专利
    • Acetamide derivative, its preparation, and herbicide containing it as active ingredient
    • 乙酰胺衍生物,其制剂和除草剂含有活性成分
    • JPS5973554A
    • 1984-04-25
    • JP18278882
    • 1982-10-20
    • Idemitsu Kosan Co Ltd
    • TAKEMATSU TETSUOYOSHIKAWA NOBUYUKIKAMIMURA MASATOSHI
    • A01N37/18C07C67/00C07C231/00C07C231/02C07C233/11C07C235/32
    • NEW MATERIAL:A compound shown by the formula I R
      1 and R
      2 are 1W3C alkyl; R
      3 and R
      4 are H, halogen, 1W3C alkyl, 1W3C alkoxy, or CF
      3 ).
      USE: A herbicide. Controlling germination and growth of weeds, destroying selectively perennial weeds. When paddy rice plants of direct sowing culture are subjected to soil treatment at about flooding, thr herbicide shows excellent herbicidal effect on cyperaceous weeds such as Cyperus serotinus Rottb, bulrush, umbrella plant, slender spikerush, etc. and gramineous weeds such as Echinochloa crus-galli Beauv. var. praticola Ohwi.
      PROCESS: An α,α-dialkylnaphthylmethylamine shown by the formula II is reacted with a phenylacetic acid shown by the formula II or its reactive derivative (e.g., substituted phenylacetic acid chloride shown by the formula IV) to give a compound shown by the formula I . The reaction between the compound shown by the formula IV and a compound shown by the formula II is carried out in an ether solvent in the presence of a base under reflux by heating.
      COPYRIGHT: (C)1984,JPO&Japio
    • 新材料:由式I R 1和R 2表示的化合物是1-3C烷基; R 3和R 4是H,卤素,1-3C烷基,1-3C烷氧基或CF 3)。 用途:除草剂。 控制杂草的发芽和生长,破坏选择性多年生杂草。 当直播播种文化的水稻植物在大约洪水下进行土壤处理时,除草剂对莎草,莎草植物,苗条菠菜等gr草杂草对aceous草杂草具有极好的除草效果,禾本科植物稗草等禾本科杂草, 加里·博若 变种。 praticola Ohwi 方法:将式II所示的α,α-二烷基萘基甲胺与式II或其反应性衍生物(例如由式IV所示的取代的苯基乙酰氯)所示的苯乙酸反应,得到式I所示的化合物 。 由式IV表示的化合物与通式II所示的化合物之间的反应在醚溶剂中,在碱的存在下,通过加热回流进行。