Intermediates for preparation of 3-bromo-4-fluoro-benzyl alcohol
    7.
    发明授权
    Intermediates for preparation of 3-bromo-4-fluoro-benzyl alcohol 失效
    用于制备3-溴-4-氟 - 苄醇的中间体

    公开(公告)号:US4386035A

    公开(公告)日:1983-05-31

    申请号:US301510

    申请日:1981-09-14

    CPC分类号: C07C29/147 C07C51/56

    摘要: A process for the preparation of 3-bromo-4-fluoro-benzyl alcohol of the formula ##STR1## comprising reacting 3-bromo-4-fluoro-benzoic acid or a derivative thereof of the formula ##STR2## in which R is a hydrogen atom, an alkyl radical or an alkoxycarbonyl radical,with a complex hydride of the formulaM(M'H.sub.4)in whichM is lithium, sodium or potassium, andM' is boron or aluminum,at a temperature between about -20.degree. and +150.degree. C. When R is alkoxycarbonyl the starting material can be produced by reacting the corresponding free acid with a chloroformic acid ester. Compounds wherein R is alkyl or alkoxycarbonyl are new. The end product is a known intermediate for insecticides.

    摘要翻译: 制备式“IMAGE”的3-溴-4-氟 - 苯甲醇的方法,包括使3-溴-4-氟 - 苯甲酸或其中R为氢的式“IMAGE”的衍生物 原子,烷基或烷氧基羰基与式M(M'H4)的复合氢化物,其中M是锂,钠或钾,M'是硼或铝,在约-20℃和 +150℃。当R为烷氧基羰基时,可通过使相应的游离酸与氯甲酸酯反应来制备原料。 其中R是烷基或烷氧基羰基的化合物是新的。 最终产品是已知的杀虫剂中间体。

    Substituted pyridyl-phenyl ethers
    9.
    发明授权
    Substituted pyridyl-phenyl ethers 失效
    取代的吡啶基 - 苯基醚

    公开(公告)号:US4585870A

    公开(公告)日:1986-04-29

    申请号:US577902

    申请日:1984-02-07

    摘要: Novel substituted pyridyl-phenyl ethers of the formula ##STR1## in which X represents trifluoromethyl or chlorine,Y represents hydrogen or chlorine,R.sup.1 represents hydrogen or methyl andR.sup.2 represents formyl or the radicals of the formulae ##STR2## in which R.sup.3 represents alkyl with 1 to 4 carbon atoms,or the two radicals R.sup.3 together represent an alkylene chain with 2 or 3 carbon atoms,R.sup.4, R.sup.5, R.sup.6 and R.sup.7 independently of one another represent hydrogen or alkyl with 1 to 4 carbon atoms,m represents 1 or 2,n represents 0 or 1 andZ represents trimethylsilyl, optionally substituted azolyl which is bonded via nitrogen or the radicals of the formulae ##STR3## in which R.sup.8 represents alkyl with 1 to 4 carbon atoms,or the two radicals R.sup.8 together represent an alkylene chain with 2 or 3 carbon atoms,R.sup.9 represents alkyl with 1 to 4 carbon atoms,X.sup.1 represents oxygen or sulphur andR.sup.10 and R.sup.11 independently of one another represent hydrogen or alkyl with 1 to 4 carbon atoms,and their use as herbicides.

    摘要翻译: 新颖的式(I)的取代的吡啶基 - 苯基醚,其中X表示三氟甲基或氯,Y表示氢或氯,R1表示氢或甲基,R2表示甲酰基或式“IMAGE”的基团,其中R3 表示具有1至4个碳原子的烷基,或两个基团R 3一起表示具有2或3个碳原子的亚烷基链,R 4,R 5,R 6和R 7彼此独立地表示氢或具有1至4个碳原子的烷基,m表示 1或2,n表示0或1,Z表示三甲基甲硅烷基,任选取代的通过氮键合的唑基或其中R 8表示具有1至4个碳原子的烷基的式“IMAGE”的基团,或两个基团R8一起表示 具有2或3个碳原子的亚烷基链,R 9表示具有1至4个碳原子的烷基,X 1表示氧或硫,R 10和R 11彼此独立地表示氢或具有1至4个碳原子的烷基,并且它们用作 除草剂。

    Pyridyloxy-phenoxy-propionic acid phosphoroates having herbicidal
activity
    10.
    发明授权
    Pyridyloxy-phenoxy-propionic acid phosphoroates having herbicidal activity 失效
    具有除草活性的吡啶氧基 - 苯氧基 - 丙酸磷酸酯

    公开(公告)号:US4657577A

    公开(公告)日:1987-04-14

    申请号:US716875

    申请日:1985-03-28

    摘要: Novel substituted pyridyl-phenyl ethers of the formula ##STR1## in which X represents trifluoromethyl or chlorine,Y represents hydrogen or chlorine,R.sup.1 represents hydrogen or methyl andR.sup.2 represents formyl or the radicals of the formulae ##STR2## in which R.sup.3 represents alkyl with 1 to 4 carbon atoms, or the two radicals R.sup.3 together represent an alkylene chain with 2 or 3 carbon atoms,R.sup.4, R.sup.5, R.sup.6 and R.sup.7 independently of one another represent hydrogen or alkyl with 1 to 4 carbon atoms,m represents 1 or 2,n represents 0 or 1 andZ represents trimethylsilyl, optionally substituted azolyl which is bonded via nitrogen or the radicals of the formulae ##STR3## in which R.sup.8 represents alkyl with 1 to 4 carbon atoms,or the two radicals R.sup.8 together represent an alkylene chain with 2 or 3 carbon atoms,R.sup.9 represents alkyl with 1 to 4 carbon atoms,X.sup.1 represents oxygen or sulphur andR.sup.10 and R.sup.11 independently of one another represent hydrogen or alkyl with 1 to 4 carbon atoms,and their use as herbicides.

    摘要翻译: 新颖的式(I)的取代的吡啶基 - 苯基醚,其中X表示三氟甲基或氯,Y表示氢或氯,R1表示氢或甲基,R2表示甲酰基或式“IMAGE”的基团,其中R3 表示具有1至4个碳原子的烷基,或两个基团R 3一起表示具有2或3个碳原子的亚烷基链,R 4,R 5,R 6和R 7彼此独立地表示氢或具有1至4个碳原子的烷基,m表示 1或2,n表示0或1,Z表示三甲基甲硅烷基,任选取代的通过氮键合的唑基或其中R 8表示具有1至4个碳原子的烷基的式“IMAGE”的基团,或两个基团R8一起表示 具有2或3个碳原子的亚烷基链,R 9表示具有1至4个碳原子的烷基,X 1表示氧或硫,R 10和R 11彼此独立地表示氢或具有1至4个碳原子的烷基,并且它们用作 除草剂。