Method for producing o-chloromethyl benzenecarbonyl chlorides
    1.
    发明授权
    Method for producing o-chloromethyl benzenecarbonyl chlorides 失效
    邻苯甲酰氯的制备方法

    公开(公告)号:US06734322B1

    公开(公告)日:2004-05-11

    申请号:US10130826

    申请日:2002-05-23

    IPC分类号: C07C5158

    CPC分类号: C07C51/09 C07C63/04

    摘要: The invention relates to a method for producing o-choromethyl benzenecarbonyl chlorides of formula (I), wherein R1-R4 can be the same or different and stand for hydrogen, C1-C4-alkyl, halogen or trifluoromnethyl, by converting benzocondensed lactones of formula (II), wherein R1-R4 have the aforementioned meaning, with gaseous or liquid phosgene and the dimers or trimers thereof. The inventive method is characterized in that the conversion is carried out in the presence of catalytical amounts of a Lewis acid and catalytical amounts of a phosgenation catalyst

    摘要翻译: 本发明涉及一种制备式(I)的邻氯甲基苯甲酰氯的方法,其中R 1 -R 4可以相同或不同,代表氢,C 1 -C 4 - 烷基,卤素或三氟甲基, 通过用气态或液体光气及其二聚体或三聚体转化其中R 1 -R 4具有上述含义的式(II)的苯并二化内酯。 本发明的方法的特征在于转化在催化量的路易斯酸和催化量的光气化催化剂

    Method for producing o-chloromethyl benzoic acid chlorides
    2.
    发明授权
    Method for producing o-chloromethyl benzoic acid chlorides 失效
    邻氯甲基苯甲酸氯化物的生产方法

    公开(公告)号:US07034181B1

    公开(公告)日:2006-04-25

    申请号:US10130821

    申请日:2000-11-27

    IPC分类号: C07C51/58

    CPC分类号: C07C51/60 C07C63/10

    摘要: The invention relates to a method for producing o-chloromethyl benzoic acid chlorides of formula (I), in which R1 to R4 can be the same or different and represent hydrogen C1–C4 alkyl, halogen or trifluoromethyl, by reaction benzo condensed lactones of formula (II), in which R1 to R4 have the above-mentioned meaning, with thionyl chloride. The inventive method is characterized in that the reaction is carried out in the presence of catalytic quantities of a Lewis acid and in the presence of catalytic quantities of a phosphine derivative.

    摘要翻译: 本发明涉及一种制备式(I)的邻氯甲基苯甲酰氯的方法,其中R 1至R 4可以相同或不同,表示氢 C 1 -C 4烷基,卤素或三氟甲基,通过反应式(II)的苯并稠合内酯,其中R 1至R 4, SUP> 4 具有上述含义,与亚硫酰氯。 本发明的方法的特征在于反应在催化量的路易斯酸存在下和在催化量的膦衍生物的存在下进行。

    Method for producing 1-substituted 5-Hydroxypyrazoles
    4.
    发明授权
    Method for producing 1-substituted 5-Hydroxypyrazoles 失效
    1-取代的5-或3-羟基吡唑的制备方法

    公开(公告)号:US06392058B1

    公开(公告)日:2002-05-21

    申请号:US09856201

    申请日:2001-05-17

    IPC分类号: C07D23120

    CPC分类号: C07D231/20

    摘要: The invention relates to a process for preparing 1-substituted 5- and/or 3-hydroxypyrazoles of the formulae I and II in which R1 is C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkynyl, C3-C6-cycloalkyl or C1-C4-alkoxy, where these groups may be substituted by halogen, C1-C4-alkoxy, phenoxy, C1-C6-alkoxycarbonyl, C1-C6-alkylthiocarbonyl or by a cyclic ring system having 3-14 ring atoms, which comprises reacting an alkyl 3-alkoxyacrylate of the formula III in which R2, R3 independently of one another are C1-C6-alkyl or C3-C6-cycloalkyl with a hydrazine of the formula IV in which R1 is as defined above a) at a pH of 6-11 to give 5-hydroxypyrazoles of the formula I or b) at a pH of 11-14 to give 3-hydroxypyrazoles of the formula II.

    摘要翻译: 本发明涉及一种制备式I和IIin的1-取代的5-和/或3-羟基吡唑的方法,其中R 1为C 1 -C 6 - 烷基,C 2 -C 6 - 烯基,C 2 -C 6 - 炔基,C 3 -C 6 - 环烷基或C 1 -C 4 - 烷氧基,其中这些基团可以被卤素,C 1 -C 4 - 烷氧基,苯氧基,C 1 -C 6 - 烷氧基羰基,C 1 -C 6 - 烷硫基羰基或具有3-14个环原子的环状体系取代, 包括式IIIin的3-烷氧基丙烯酸烷基酯,其中R 2,R 3彼此独立地是C 1 -C 6烷基或C 3 -C 6环烷基与式IVin的肼,其中R 1如上所定义),其pH为6- 11得到式I的5-羟基吡唑)在11-14的pH下,得到式II的3-羟基吡唑。

    Method for the production of 1-substituted 5-hydroxypyrazoles
    5.
    发明授权
    Method for the production of 1-substituted 5-hydroxypyrazoles 失效
    1-取代的5-羟基吡唑的制备方法

    公开(公告)号:US06329530B1

    公开(公告)日:2001-12-11

    申请号:US09830948

    申请日:2001-05-03

    IPC分类号: C07D23120

    CPC分类号: C07D231/20

    摘要: The invention relates to a method for the production of 1-substituted 5-hydroxypyrazoles of formula (I) wherein R1 is C1-C6-alkyl, C2-C6-alkenyl, C2-C6-alkinyl, C3-C6-cycloalkyl or C1-C4-alkoxy, whereby these groups can be substituted by halogen, C1-C4-alkoxy, phenoxy, C1-C6-alkoxycarbonyl, C1-C6-alkylthiocarbonyl or a cyclic ring system with 3-14 ring atoms, by reacting a) an alkylvinylether of general formula (III) wherein R2 is C1-C6-alkyl or C3-C6-cycloalkyl, with phosgene (IVa), “diphosgene” (IVb) or “triphosgene” (IVc) to form acid chlorides of formula (V), b) transforming said acid chlorides by eliminating hydrogen chloride into the corresponding 3-alkoxyacrylic acid chloride of formula (VI) and c) reacting said acid chloride with hydrazines of formula (VII) wherein R1 has the above cited meaning, to form 5-hydroxypyrazoles of formula (I).

    摘要翻译: 本发明涉及制备式(I)的1-取代的5-羟基吡唑的方法,其中R1是C1-C6-烷基,C2-C6-烯基,C2-C6-炔基,C3-C6-环烷基或C1- C4烷氧基,其中这些基团可以被卤素,C 1 -C 4 - 烷氧基,苯氧基,C 1 -C 6 - 烷氧基羰基,C 1 -C 6烷硫基羰基或具有3-14个环原子的环状体系取代,通过使a)烷基乙烯基醚 (IVa),“二光气”(IVb)或“三光气”(IVc))中形成式(V)的酰氯的通式(III)的化合物,其中R2为C1-C6-烷基或C3-C6- b)通过将氯化氢除去相应的式(VI)的3-烷氧基丙烯酰氯,并且c)使所述酰氯与式(Ⅶ)的肼反应,其中R 1具有上述含义,形成5-羟基吡唑 的式(I)化合物。

    Method for producing 1-substituted 5-hydroxypyrazoles
    10.
    发明授权
    Method for producing 1-substituted 5-hydroxypyrazoles 失效
    1-取代的5-羟基吡唑的制备方法

    公开(公告)号:US06472538B1

    公开(公告)日:2002-10-29

    申请号:US09830350

    申请日:2001-04-25

    IPC分类号: C07D23120

    CPC分类号: C07C243/30 C07D231/20

    摘要: A process for preparing compounds of the formula I in which R1 is hydrogen, an aliphatic group having 1-8 carbon atoms, C1-C6-alkoxycarbonyl, C1-C6-alkylthiocarbonyl or a cyclic ring system having 3-14 ring atoms, and R2 is hydrogen, an aliphatic group having 1-8 carbon atoms, or R1 and R2 together with the carbon atom to which they are bound form a cyclic or bicyclic ring system having 3-14 ring atoms, comprises the preparation of compounds of the formula II  in which R3 and R4 are readily detachable groups and R1 and R2 are as defined above, as starting materials or intermediates and the cyclization of these under suitable reaction conditions to give compounds of the formula I.

    摘要翻译: 制备式Iin的化合物的方法,其中R 1是氢,具有1-8个碳原子的脂族基团,C 1 -C 6烷氧基羰基,C 1 -C 6烷硫基羰基或具有3-14个环原子的环状体系,R 2是氢 ,具有1-8个碳原子的脂族基团,或R 1和R 2与它们所连接的碳原子一起形成具有3-14个环原子的环状或双环体系,包括制备式II化合物,其中R 3 并且R 4是容易拆分的基团,并且R 1和R 2如上所定义,作为原料或中间体,并在合适的反应条件下环化,得到式I化合物。