Process for preparing aryl-substituted pyrazoles
    41.
    发明申请
    Process for preparing aryl-substituted pyrazoles 有权
    制备芳基取代的吡唑的方法

    公开(公告)号:US20110028729A1

    公开(公告)日:2011-02-03

    申请号:US12842243

    申请日:2010-07-23

    IPC分类号: C07D401/04 C07D231/14

    CPC分类号: C07D231/08 C07D231/12

    摘要: The present invention relates to a process for preparing 1-aryl-substituted pyrazoles, comprising the reaction of alkoxy enones and enamino ketones with arylhydrazine derivatives to give 1-aryl-substituted dihydro-1H-pyrazoles, the further reaction thereof with elimination of water to give 1-aryl-substituted trihalomethylpyrazoles, and the further processing thereof.

    摘要翻译: 本发明涉及一种制备1-芳基取代的吡唑的方法,其包括烷氧基烯酮和烯氨基酮与芳基肼衍生物的反应,得到1-芳基取代的二氢-1H-吡唑,其进一步反应除去水 得到1-芳基取代的三卤代甲基吡唑,进一步处理。

    Process for the preparation of 2,3,4,5-tetrafluorobenzene derivatives
    46.
    发明授权
    Process for the preparation of 2,3,4,5-tetrafluorobenzene derivatives 失效
    制备2,3,4,5-四氟苯衍生物的方法

    公开(公告)号:US06613948B1

    公开(公告)日:2003-09-02

    申请号:US09152595

    申请日:1998-09-14

    IPC分类号: C07C2200

    摘要: 2,3,4,5-tetrafluorobenzene derivatives can be obtained in a particularly advantageous manner by reacting the corresponding chlorobenzene or (chloro, fluoro)-benzene derivatives with a fluorinating agent in the presence of a solvent and a catalyst at elevated temperature, which comprises carrying out the reaction initially under temperature and pressure conditions such that the respective 2,3,4,5-tetrafluoro-benzene derivative continuously distills off through a column, and subsequently setting temperature and pressure conditions such that residual fractions of the 2,3,4,5-tetrafluorobenzene derivative distill off with the corresponding 2,3,4-trifluoro-5-chloro compound.

    摘要翻译: 通过在溶剂和催化剂存在下,在升高的温度下使相应的氯苯或(氯,氟) - 苯衍生物与氟化剂反应,可以以特别有利的方式获得2,3,4,5-四氟苯衍生物, 包括最初在温度和压力条件下进行反应,使得相应的2,3,4,5-四氟苯衍生物通过柱连续蒸馏出来,随后设定温度和压力条件,使得2,3 ,4,5-四氟苯衍生物与相应的2,3,4-三氟-5-氯化合物蒸馏出。

    3,3-dioxy-4,4,4-trifluorobutyric acid derivatives
    47.
    发明授权
    3,3-dioxy-4,4,4-trifluorobutyric acid derivatives 失效
    3,3-二氧基-4,4,4-三氟丁酸衍生物

    公开(公告)号:US5739394A

    公开(公告)日:1998-04-14

    申请号:US767581

    申请日:1996-12-16

    申请人: Norbert Lui

    发明人: Norbert Lui

    摘要: The invention relates to novel 3,3-dioxy-4,4,4-trifluorobutyric acid derivatives of the formula (I) ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent C.sub.1 -C.sub.10 -alkyl, or represent cyclohexyl, or represent optionally substituted C.sub.6 -C.sub.10 -aryl or C.sub.7 -C.sub.14 -arylalkyl, or R.sup.1 and R.sup.2 together represent C.sub.2 -C.sub.4 -alkylene which is optionally mono- or disubstituted by methyl, or optionally substituted ortho-arylene, R.sup.3 represents hydrogen or C.sub.1 -C.sub.10 -alkyl, or represents cycloalkyl, or represents optionally substituted C.sub.6 -C.sub.10 -aryl or C.sub.7 -C.sub.14 -arylalkyl, and X represents hydrogen, fluorine, chlorine or bromine, excluding methyl 4,4,4-trifluoro-3,3-dimethoxybutyrate, 4,4,4-trifluoro-3,3-dimethoxybutyric acid, ethyl 4,4,4-trifluoro-3,3-diethoxybutyrate, ethyl 4,4,4-trifluoro-3,3-ethylenedioxybutyrate and 4,4,4-trifluoro-3,3-ethylenedioxybutyric acid, a process for their preparation and for the preparation of further 3,3-dioxy-4,4,4-trifluorobutyric acid derivatives, as well as novel intermediates and processes for their preparation.

    摘要翻译: 本发明涉及式(I)的新的3,3-二氧基-4,4,4-三氟丁酸衍生物彼此表示C1-C10-烷基或代表环己基,或代表任选取代的C 6 -C 10 - 芳基或 C 7 -C 14 - 芳基烷基或R 1和R 2一起表示任选被甲基或任选取代的邻 - 亚芳基单取代或二取代的C 2 -C 4 - 亚烷基,R 3表示氢或C 1 -C 10 - 烷基,或表示环烷基,或表示 任选取代的C 6 -C 10 - 芳基或C 7 -C 14 - 芳烷基,X代表氢,氟,氯或溴,不包括4,4,4-三氟-3,3-二甲氧基丁酸甲酯,4,4,4-三氟-3 ,3-二甲氧基丁酸,4,4,4-三氟-3,3-二乙氧基丁酸乙酯,4,4,4-三氟-3,3-亚乙二氧基丁酸乙酯和4,4,4-三氟-3,3-亚乙二氧基丁酸 ,其制备方法和制备其它的3,3-二氧基-4,4,4-三氟丁酸衍生物,以及其制备新颖的中间体和方法。

    Process for preparing pyridyl-substituted pyrazoles
    50.
    发明授权
    Process for preparing pyridyl-substituted pyrazoles 有权
    制备吡啶基取代的吡唑的方法

    公开(公告)号:US08987460B2

    公开(公告)日:2015-03-24

    申请号:US13739446

    申请日:2013-01-11

    IPC分类号: C07D401/04

    CPC分类号: C07D401/04 Y02P20/55

    摘要: The present invention relates to a process for preparing 1-pyridyl-substituted pyrazoles, comprising the reaction of acetyleneketones with pyridylhydrazine derivatives to give 1-pyridyl-substituted dihydro-1H-pyrazoles, the further reaction thereof with elimination of water to give 1-pyridyl-substituted trihalomethylpyrazoles, and the further processing thereof.

    摘要翻译: 本发明涉及一种制备1-吡啶基取代的吡唑的方法,其中包括乙酰基酮与吡啶基肼衍生物的反应,得到1-吡啶基取代的二氢-1H-吡唑,进一步反应,除去水,得到1-吡啶基 - 取代的三卤代甲基吡唑,以及其进一步处理。