Process for the preparation of pyrazole derivatives

    公开(公告)号:US20120004421A1

    公开(公告)日:2012-01-05

    申请号:US13256564

    申请日:2010-03-12

    IPC分类号: C07D231/38

    CPC分类号: C07D231/38

    摘要: The present invention refers to a process for the preparation of pyrazole derivatives of formula (I) wherein W is nitrogen or CR1, R1, R2, R4 and R5 are each independently selected from hydrogen, halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy, R7S(O)n, nitro, cyano, and pentafluorothio; R3 is hydrogen, halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy, R7S(O)n, nitro, cyano, pentafluorothio or phenyl which is unsubstituted or substituted by 1 to 5 members of the group consisting of halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy, R7S(O)n, nitro, cyano, and pentafluorothio which are the same or different; R7 is C1-C6-alkyl or C1-C6-haloalkyl; and n is 0, 1, or 2; characterized in that hydrazines of formula (II) wherein W, R2, R3, R4, and R5 are as defined for pyrazole derivatives of formula (I), are reacted with a compound of formula (III)

    Process for the preparation of pyrazole derivatives
    4.
    发明授权
    Process for the preparation of pyrazole derivatives 失效
    吡唑衍生物的制备方法

    公开(公告)号:US08288563B2

    公开(公告)日:2012-10-16

    申请号:US13256564

    申请日:2010-03-12

    IPC分类号: C07D231/10

    CPC分类号: C07D231/38

    摘要: The present invention refers to a process for the preparation of pyrazole derivatives of formula (I) wherein W is nitrogen or CR1, R1, R2, R4 and R5 are each independently selected from hydrogen, halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy, R7S(O)n, nitro, cyano, and pentafluorothio; R3 is hydrogen, halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy, R7S(O)n, nitro, cyano, pentafluorothio or phenyl which is unsubstituted or substituted by 1 to 5 members of the group consisting of halogen, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy, R7S(O)n, nitro, cyano, and pentafluorothio which are the same or different; R7 is C1-C6-alkyl or C1-C6-haloalkyl; and n is 0, 1, or 2; characterized in that hydrazines of formula (II) wherein W, R2, R3, R4, and R5 are as defined for pyrazole derivatives of formula (I), are reacted with a compound of formula (III)

    摘要翻译: 本发明涉及一种制备式(I)的吡唑衍生物的方法,其中W是氮或CR 1,R 1,R 2,R 4和R 5各自独立地选自氢,卤素,C 1 -C 6烷基,C 1 -C 6 卤代烷基,C 1 -C 6 - 烷氧基,C 1 -C 6卤代烷氧基,R 7 S(O)n,硝基,氰基和五氟硫基; R3是氢,卤素,C1-C6-烷基,C1-C6-卤代烷基,C1-C6-烷氧基,C1-C6-卤代烷氧基,R7S(O)n,硝基,氰基,五氟硫基或未被取代或被1 至卤素,C 1 -C 6 - 烷基,C 1 -C 6 - 卤代烷基,C 1 -C 6 - 烷氧基,C 1 -C 6 - 卤代烷氧基,R 7 S(O)n,硝基,氰基和五氟硫基的5个成员相同 或不同; R7是C1-C6-烷基或C1-C6-卤代烷基; 并且n为0,1或2; 其特征在于其中W,R 2,R 3,R 4和R 5如式(I)的吡唑衍生物所定义的式(II)的肼与式(III)的化合物反应,

    Process for Preparing Substituted N-Phenylhydroxylamines
    8.
    发明申请
    Process for Preparing Substituted N-Phenylhydroxylamines 有权
    制备取代的N-苯基羟胺的方法

    公开(公告)号:US20130178634A1

    公开(公告)日:2013-07-11

    申请号:US13825252

    申请日:2011-09-20

    IPC分类号: C07D231/22

    CPC分类号: C07D231/22

    摘要: The present invention relates to a process for the preparation of a ring-substituted N-phenylhydroxylamine by reduction of the correspondingly substituted nitrobenzene compound, wherein the reduction is carried out by reacting the substituted nitrobenzene compound with hydrazine in the presence of a ruthenium catalyst.

    摘要翻译: 本发明涉及通过还原相应的取代的硝基苯化合物制备环取代的N-苯基羟胺的方法,其中通过在钌催化剂存在下使取代的硝基苯化合物与肼反应来进行还原。

    Process for the preparation of 4-sulfinyl-pyrazole derivatives
    10.
    发明授权
    Process for the preparation of 4-sulfinyl-pyrazole derivatives 失效
    4-亚磺酰基 - 吡唑衍生物的制备方法

    公开(公告)号:US08476459B2

    公开(公告)日:2013-07-02

    申请号:US13504574

    申请日:2010-10-26

    IPC分类号: C07D231/44

    CPC分类号: C07D231/44

    摘要: The present invention relates to a novel process for the preparation of a compound of formula (I), wherein R1, R2, R3, R4 and R5 are each independently selected from hydrogen, halogen, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, nitro, cyano, and pentafluorothio; R6 is C1-C4-alkyl, or C1-C4-haloalkyl; by oxidation of a compound of formula (II) with an oxidation agent selected from trifluoroperacetic acid and trichloroperacetic acid in the presence of a catalyst selected from hydroxides, oxides, sulfates, acetates or trifluoroacetates of lithium, magnesium, calcium, strontium, barium, titanium (IV), zinc (II) and manganese (II).

    摘要翻译: 本发明涉及一种制备式(I)化合物的新方法,其中R 1,R 2,R 3,R 4和R 5各自独立地选自氢,卤素,C 1 -C 4 - 烷基,C 1 -C 4 - 卤代烷基 ,C 1 -C 4 - 烷氧基,C 1 -C 4卤代烷氧基,硝基,氰基和五氟硫基; R6是C1-C4-烷基或C1-C4卤代烷基; 通过在选自三氟乙酸和三氯过乙酸的氧化剂中,在选自锂,镁,钙,锶,钡,钛的氢氧化物,氧化物,硫酸盐,乙酸盐或三氟乙酸盐的催化剂存在下,使式(Ⅱ)化合物氧化 (IV),锌(II)和锰(II)。