Process for producing 2-fluoroisobutyric acid ester
    3.
    发明授权
    Process for producing 2-fluoroisobutyric acid ester 失效
    2-氟异丁酸酯的制备方法

    公开(公告)号:US5175345A

    公开(公告)日:1992-12-29

    申请号:US854734

    申请日:1992-03-23

    IPC分类号: C07C51/363 C07C67/307

    CPC分类号: C07C51/363 C07C67/307

    摘要: A 2-fluoroisobutyric acid ester can be obtained at a high yield in one pot by reacting a 2-hydroxyisobutyric acid ester with fluorosulfuric acid in the absence or presence of a hydrogen fluoride source, or by reacting a 2-hydroxyisobutyric acid ester with chlorosulfuric acid in the presence of a hydrogen fluoride source.

    摘要翻译: 2-氟异丁酸酯可以通过在不存在或存在氟化氢源的情况下使2-羟基异丁酸酯与氟代硫酸反应,或通过使2-羟基异丁酸酯与氯硫酸反应, 在氟化氢源的存在下。

    Triazine derivative and a herbicide comprising the same as an effective
ingredient
    5.
    发明授权
    Triazine derivative and a herbicide comprising the same as an effective ingredient 失效
    三嗪衍生物和除草剂,其包含与有效成分相同的除草剂

    公开(公告)号:US5290754A

    公开(公告)日:1994-03-01

    申请号:US582835

    申请日:1990-10-05

    摘要: The present invention relates to a novel triazine derivative represented by the general formula ##STR1## in the formula, A denotes ##STR2## (in which Y.sup.1 denotes a hydrogen atom or a methyl group and Z denotes an oxygen atom or a sulfur atom), ##STR3## (in which Y.sup.2 and Y.sup.3, which can be of the same kind or different kinds, each denote a methyl group or a methoxy group) or ##STR4## (in which Y.sup.4 denotes a methyl group, trifluoromethyl group, methoxy group or fluorine atom and n denotes an integer of 0 ro 2), X.sup.1 denotes a halogen atom and R.sup.1 denotes hydrogen, a methyl group or an ethyl group as well as a herbicide containing the triazine derivative represented by the general formula (I) as an effective ingredient.

    摘要翻译: PCT No.PCT / JP90 / 00194 Sec。 371 1990年10月5日第 102(e)1990年10月5日日期PCT提交1990年2月19日PCT公布。 公开号WO90 / 09378 日本1990年8月23日。本发明涉及式中通式(* CHEMICAL STRUCTURE *)(I)表示的新型三嗪衍生物,A表示(*化学结构*)(其中Y1表示氢原子 或甲基,Z表示氧原子或硫原子),(*化学结构*)(其中Y2和Y3可以相同种类或不同,各自表示甲基或甲氧基) 或(*化学结构*)(其中Y4表示甲基,三氟甲基,甲氧基或氟原子,n表示0〜2的整数),X1表示卤素原子,R1表示氢,甲基或 乙基以及含有通式(I)表示的三嗪衍生物作为有效成分的除草剂。

    Triazine derivatives, and herbicides containing the derivatives as the
effective component
    7.
    发明授权
    Triazine derivatives, and herbicides containing the derivatives as the effective component 失效
    三嗪衍生物和含有该衍生物作为有效成分的除草剂

    公开(公告)号:US4740230A

    公开(公告)日:1988-04-26

    申请号:US903682

    申请日:1986-09-04

    CPC分类号: C07D409/12 A01N43/70

    摘要: A triazine derivative represented by the general formula: ##STR1## or the general formula: ##STR2## (wherein X.sup.1 represents a hydrogen atom, a halogen atom an alkyl group having 1 to 4 carbon atoms or an alkoxyl group having 1 to 4 carbon atoms, Z represents an oxygen atom or a sulfur atom, R.sup.1 represents an alkyl group having 1 to 4 carbon atom, and R.sup.2 represents a halogen atom, an alkylthio group having 1 to 4 carbon atoms, or an alkoxyl group having 1 to 4 carbon atoms).This invention also provides a process for efficiently preparing said triazine derivative and a herbicide containing said triazine derivative as a herbicidally effective component.

    摘要翻译: 由以下通式表示的三嗪衍生物或通式:其中X 1表示氢原子,卤原子,碳原子数1〜4的烷基或碳原子数1〜4的烷氧基。 Z表示氧原子或硫原子,R1表示碳原子数1〜4的烷基,R2表示卤素原子,碳原子数1〜4的烷硫基或碳原子数1〜4的烷氧基。 )。 本发明还提供了一种有效制备所述三嗪衍生物和含有所述三嗪衍生物作为除草有效成分的除草剂的方法。

    Triazine derivatives, and herbicides comprising the same as the
effective ingredient
    10.
    发明授权
    Triazine derivatives, and herbicides comprising the same as the effective ingredient 失效
    三嗪衍生物和除草剂,其包含与有效成分相同的除草剂

    公开(公告)号:US4932998A

    公开(公告)日:1990-06-12

    申请号:US328019

    申请日:1989-03-23

    摘要: The triazine derivatives of the present invention are roughly classified into the compounds of the general formulas [I] and [II] and further classified into 4 types depending on the kind of the Z in the general formulas and the position of substitution of the aminoalkyl group on the benzo(thia)furanyl group. Furthermore, these triazine derivatives are useful as a herbicide or, in particular, as a herbicide for paddy rice plants with greater effectiveness and less injury by chemicals than known ones. In addition, they have a wide herbicidal spectrum and exhibit remarkable effects against various kinds of weeds.

    摘要翻译: 本发明的三嗪衍生物大致分为通式[I]和[II]的化合物,根据通式中的Z的种类和氨烷基的取代位置进一步分为4种 苯并(thia)呋喃基。 此外,这些三嗪衍生物可用作除草剂,特别是用作水稻植物的除草剂,其具有比已知的更高的有效性和更少的化学损伤。 此外,它们具有宽泛的除草谱,对各种杂草表现出显着的效果。