Process for preparing difluoromethylpyrazolyl carboxylates
    1.
    发明授权
    Process for preparing difluoromethylpyrazolyl carboxylates 失效
    制备二氟甲基吡唑羧酸酯的方法

    公开(公告)号:US08115012B2

    公开(公告)日:2012-02-14

    申请号:US12513003

    申请日:2007-11-02

    IPC分类号: C07D231/10 C07F7/08

    CPC分类号: C07D231/14

    摘要: The present invention relates to a process for preparing difluoromethyl-substituted pyrazol-4-ylcarboxylates of the formula I in which R1 is C1-C8-alkyl, C3-C8-cycloalkyl, C1-C4-alkoxy-C1-C4-alkyl, etc.; and R2 is hydrogen, C1-C4-alkyl, benzyl or phenyl, wherein a) a compound of the general formula II in which X is fluorine, chlorine or bromine, R1 has one of the meanings given above and R4 is C1-C8-alkyl, C3-C8-cycloalkyl, C2-C8-alkenyl, benzyl or phenyl, is reacted with a silane compound of the general formula R3nSiCl(4-n) in which n is 1, 2 or 3 and the substituents R3 are independently of one another selected from the group consisting of C1-C8-alkyl and phenyl and with a metal selected from the metals of groups 1, 2, 3, 4 and 12 of the Periodic Table of the Elements having a redox potential of less than −0.7 V, based on a normal hydrogen electrode (at 25° C. and 101.325 kPa); and b) the reaction mixture from step a) is reacted with a compound of the general formula III R2HN—NH2  (III) in which R2 has one of the meanings given above.

    摘要翻译: 本发明涉及制备式Ⅰ的二氟甲基取代的吡唑-4-基羧酸酯的方法,其中R 1是C 1 -C 8烷基,C 3 -C 8环烷基,C 1 -C 4烷氧基-C 1 -C 4烷基等 。 R 2是氢,C 1 -C 4 - 烷基,苄基或苯基,其中a)通式II的化合物,其中X是氟,氯或溴,R 1具有上面给出的含义之一,R 4是C 1 -C 8 - 烷基,C 3 -C 8 - 环烷基,C 2 -C 8 - 烯基,苄基或苯基与通式R 3 n SiCl(4-n)的硅烷化合物反应,其中n为1,2或3,取代基R 3独立地为 选自由C 1 -C 8 - 烷基和苯基组成的组中的一种,以及选自元素周期表第1,2,3,4和12族金属的金属,其氧化还原电位小于-0.7 V,基于正常的氢电极(在25℃和101.325kPa); 和b)将来自步骤a)的反应混合物与通式III的化合物R2HN-NH2(III)反应,其中R2具有上述含义之一。

    Process for preparing difluoromethylpyrazolyl carboxylates
    2.
    发明申请
    Process for preparing difluoromethylpyrazolyl carboxylates 失效
    制备二氟甲基吡唑羧酸酯的方法

    公开(公告)号:US20100069646A1

    公开(公告)日:2010-03-18

    申请号:US12513003

    申请日:2007-11-02

    IPC分类号: C07D231/10 C07F7/08

    CPC分类号: C07D231/14

    摘要: The present invention relates to a process for preparing difluoromethyl-substituted pyrazol-4-ylcarboxylates of the formula I in which R1 is C1-C8-alkyl, C3-C8-cycloalkyl, C1-C4-alkoxy-C1-C4-alkyl, etc.; and R2 is hydrogen, C1-C4-alkyl, benzyl or phenyl, wherein a) a compound of the general formula II in which X is fluorine, chlorine or bromine, R1 has one of the meanings given above and R4 is C1-C8-alkyl, C3-C8-cycloalkyl, C2-C8-alkenyl, benzyl or phenyl, is reacted with a silane compound of the general formula R3nSiCl(4-n) in which n is 1, 2 or 3 and the substituents R3 are independently of one another selected from the group consisting of C1-C8-alkyl and phenyl and with a metal selected from the metals of groups 1, 2, 3, 4 and 12 of the Periodic Table of the Elements having a redox potential of less than −0.7 V, based on a normal hydrogen electrode (at 25° C. and 101.325 kPa); and b) the reaction mixture from step a) is reacted with a compound of the general formula III R2HN—NH2   (III) in which R2 has one of the meanings given above.

    摘要翻译: 本发明涉及制备式Ⅰ的二氟甲基取代的吡唑-4-基羧酸酯的方法,其中R 1是C 1 -C 8烷基,C 3 -C 8环烷基,C 1 -C 4烷氧基-C 1 -C 4烷基等 。 并且R 2是氢,C 1 -C 4 - 烷基,苄基或苯基,其中a)通式II的化合物,其中X是氟,氯或溴,R 1具有上面给出的含义之一,R 4是C 1 -C 8 - 烷基,C 3 -C 8 - 环烷基,C 2 -C 8 - 烯基,苄基或苯基与通式R 3 n SiCl(4-n)的硅烷化合物反应,其中n为1,2或3,取代基R 3独立地为 选自由C 1 -C 8 - 烷基和苯基组成的组中的一种,以及选自元素周期表第1,2,3,4和12族金属的金属,其氧化还原电位小于-0.7 V,基于正常的氢电极(在25℃和101.325kPa); 和b)将来自步骤a)的反应混合物与通式III的化合物R2HN-NH2(III)反应,其中R2具有上述含义之一。

    Method for the Production of N-Substituted (3-Dihalomethyl-1-Methyl-Pyrazole-4-yl) Carboxamides
    3.
    发明申请
    Method for the Production of N-Substituted (3-Dihalomethyl-1-Methyl-Pyrazole-4-yl) Carboxamides 有权
    N-取代的(3-二卤代甲基-1-甲基 - 吡唑-4-基)羧酰胺的制备方法

    公开(公告)号:US20100174094A1

    公开(公告)日:2010-07-08

    申请号:US12601966

    申请日:2008-05-30

    IPC分类号: C07D231/18 C07D231/12

    CPC分类号: C07D231/14

    摘要: The present invention relates to a process for preparing N-substituted (3-dihalomethylpyrazol-4-yl)carboxamides of the formula (I) in which R1 is optionally substituted phenyl or C3-C7-cycloalkyl, R1a is hydrogen or fluorine, or R1a together with R1 is optionally substituted C3-C5-alkanediyl or C5-C7-cycloalkanediyl, R2 is C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl or C1-C4-alkoxy-C1-C2-alkyl, X is F or Cl and n is 0, 1, 2 or 3; which comprises A) providing a compound of the formula (II) in which X is F or Cl, Y is Cl or Br and R2 has one of the meanings given above and B) reacting a compound of the formula (II) with carbon monoxide and a compound of the formula (III) in which R1, R1a and n have one of the meanings given above; in the presence of a palladium catalyst; to intermediates used for the preparation according to the process according to the invention, and also to processes for their preparation.

    摘要翻译: 本发明涉及式(I)的N-取代的(3-二卤代甲基吡唑-4-基)甲酰胺的制备方法,其中R 1为任选取代的苯基或C 3 -C 7 - 环烷基,R 1a为氢或氟,或R 1a R 1是C 1 -C 6 - 烷基,C 2 -C 6 - 烯基,C 2 -C 6炔基或C 1 -C 4 - 烷氧基-C 1 -C 2 - 烷基,其中R 1是任选取代的C 3 -C 5 - 烷二基或C 5 -C 7 - 环烷二基, X是F或Cl,n是0,1,2或3; 其包括A)提供其中X为F或Cl,Y为Cl或Br的式(II)化合物,R 2具有上述含义之一,B)使式(II)化合物与一氧化碳 和其中R1,R1a和n具有上述含义之一的式(III)化合物; 在钯催化剂的存在下; 用于根据本发明的方法制备的中间体,以及其制备方法。

    Method for the production of N-substituted (3-dihalomethyl-1-methylpyrazol-4-yl) carboxamides
    4.
    发明授权
    Method for the production of N-substituted (3-dihalomethyl-1-methylpyrazol-4-yl) carboxamides 有权
    制备N-取代的(3-二卤代甲基-1-甲基吡唑-4-基)甲酰胺的方法

    公开(公告)号:US08153820B2

    公开(公告)日:2012-04-10

    申请号:US12601966

    申请日:2008-05-30

    IPC分类号: C07D231/10

    CPC分类号: C07D231/14

    摘要: The present invention relates to a process for preparing N-substituted (3-dihalomethylpyrazol-4-yl)carboxamides of the formula (I) in which R1 is optionally substituted phenyl or C3-C7-cycloalkyl, R1a is hydrogen or fluorine, or R1a together with R1 is optionally substituted C3-C5-alkanediyl or C5-C7-cycloalkanediyl, R2 is C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl or C1-C4-alkoxy-C1-C2-alkyl, X is F or Cl and n is 0, 1, 2 or 3; which comprises A) providing a compound of the formula (II) in which X is F or Cl, Y is Cl or Br and R2 has one of the meanings given above and B) reacting a compound of the formula (II) with carbon monoxide and a compound of the formula (III) in which R1, R1a and n have one of the meanings given above; in the presence of a palladium catalyst; to intermediates used for the preparation according to the process according to the invention, and also to processes for their preparation.

    摘要翻译: 本发明涉及式(I)的N-取代的(3-二卤代甲基吡唑-4-基)甲酰胺的制备方法,其中R 1为任选取代的苯基或C 3 -C 7 - 环烷基,R 1a为氢或氟,或R 1a R 1是C 1 -C 6 - 烷基,C 2 -C 6 - 烯基,C 2 -C 6炔基或C 1 -C 4 - 烷氧基-C 1 -C 2 - 烷基,其中R 1是任选取代的C 3 -C 5 - 烷二基或C 5 -C 7 - 环烷二基, X是F或Cl,n是0,1,2或3; 其包括A)提供其中X为F或Cl,Y为Cl或Br的式(II)化合物,R 2具有上述含义之一,B)使式(II)化合物与一氧化碳 和其中R1,R1a和n具有上述含义之一的式(III)化合物; 在钯催化剂的存在下; 用于根据本发明的方法制备的中间体,以及其制备方法。