제초활성을 갖는 시클로헥산-1,3-디온 유도체
    54.
    发明授权
    제초활성을 갖는 시클로헥산-1,3-디온 유도체 失效
    具有除草活性的环己烷-1,3-二酮衍生物

    公开(公告)号:KR1019950004708B1

    公开(公告)日:1995-05-04

    申请号:KR1019920010697

    申请日:1992-06-19

    Abstract: The new compound as 5-(2H-1-benzopyran-6-yl)-2-[1-(ethoxylimino) butyryl -3-hydroxy cyclohex-2-en-1-one (I) is prepared by (1) reacting 4-hydroxy benzaldehyde and 4-propazyl halide to get 4-propazyl 2H- 1- benzypyran-6- carboxaldehyde (II), (2) reacting (II) in alkali to get 4- (2H-1-benzopyran -6-y l0-3-buten-2-one (III), (3) reacting (III) with diethyl malonate to get 5-(2H-1-benzopyran-6-yl)- cyclohexan-1,3-dione (IV), (4) reacting (IV) with butyrate to get 2-butyryl-5-(2H-1-benzopyran-6-yl) -3-hydroxy cyclohex-2-en-1-one (V), reacting (V) with ethoxyl amine and sodium acetate to get (I). (I) as herbicide is useful for soybean, cotton, sugarbeet, sunflower, strawberry, wheat, corn and rice.

    Abstract translation: 通过以下方法制备5-(2H-1-苯并吡喃-6-基)-2- [1-(乙氧基亚氨基)丁酰基-3-羟基环己-2-烯-1-酮(I)的新化合物:(1) 4-羟基苯甲醛和4-异辛酰卤,得到4-异辛酰基2H-1-苯并吡喃-6-甲醛(II),(2)使(II)在碱中反应,得到4-(2H-1-苯并吡喃-6-基) (III)与(III)与丙二酸二乙酯反应得到5-(2H-1-苯并吡喃-6-基) - 环己-1,3-二酮(IV), (4)使(Ⅳ)与丁酸反应得到2-丁酰基-5-(2H-1-苯并吡喃-6-基)-3-羟基环己-2-烯-1-酮(Ⅴ),使(Ⅴ)与 乙醇胺和乙酸钠,得到(I)。(I)作为除草剂可用于大豆,棉花,甜菜,向日葵,草莓,小麦,玉米和大米。

    제초성 시클로헥산-1,3-디온 유도체와 그 제조방법
    55.
    发明授权
    제초성 시클로헥산-1,3-디온 유도체와 그 제조방법 失效
    除草环己烷-1,3-二酮衍生物及其制备方法

    公开(公告)号:KR1019950003497B1

    公开(公告)日:1995-04-13

    申请号:KR1019920014193

    申请日:1992-08-07

    CPC classification number: C07D307/79 A01N43/12

    Abstract: The derivative of formula (I) is useful for herbicides or plant growth regulants. In (I), X is H, 1-6c alkyl, 2-6c alkoxy, halogen, 1-6c haloalkyl, NO2, CN, 1-6c alkylthio, 1-6c alkylsulphinyl, 1-6c alkylsulphonyl, sulphamoyl, N-(1-6c alkyl) sulphamoyl or N,N-di(1-6c alkyl) sulphamoyl; R1 is H or 1-4c alkyl; R2 is 1-6c alkyl, 2-6c alkenyl or 2-6c alkynyl; R3 is H, 1-6c alkyl, 1-6c haloalkyl, 2-6c alkenyl, 2-6c haloalkenyl, 2-6c alkoxyalkyl, 2-6c alkylthioakyl, benzyl or 2-6c haloalkanoyl; R4 is H, alkali metal cation, alkaline earth metal cation, 1-4c alkanoyl, 1-4c haloalkanoyl or benzoyl.

    Abstract translation: 式(I)的衍生物可用于除草剂或植物生长调节剂。 在(I)中,X是H,1-6c烷基,2-6c烷氧基,卤素,1-6c卤代烷基,NO2,CN,1-6c烷硫基,1-6c烷基亚磺酰基,1-6c烷基磺酰基,氨磺酰基,N-( 1-6c烷基)氨磺酰基或N,N-二(1-6c烷基)氨磺酰基; R1是H或1-4c烷基; R2是1-6c烷基,2-6c烯基或2-6c炔基; R3是H,1-6c烷基,1-6c卤代烷基,2-6c烯基,2-6c卤代链烯基,2-6c烷氧基烷基,2-6c烷硫基烷基,苄基或2-6C卤代烷酰基; R4是H,碱金属阳离子,碱土金属阳离子,1-4c烷酰基,1-4c卤代烷酰基或苯甲酰基。

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