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    METHOD FOR PRODUCING 1-SUBSTITUTED 5- OR 3-HYDROXYPYRAZOLES
    16.
    发明专利
    METHOD FOR PRODUCING 1-SUBSTITUTED 5- OR 3-HYDROXYPYRAZOLES 未知

    公开(公告)号：BG65026B1

    公开(公告)日：2006-12-29

    申请号：BG10553801

    申请日：2001-05-22

    Applicant: BASF AG

    Inventor： MAYWALD VOLKER ,  STEINMETZ ADRIAN ,  RACK MICHAEL ,  GOETZ NORBERT ,  GOETZ ROLAND ,  HENKELMANN JOCHEM ,  BECKER HEIKE ,  AISCAR BAYETO JUAN

    IPC: C07D231/20

    Abstract: The invention relates to a method for producing 1-substituted 5- and/or 3-hydroxypyrazoles of formula wherein R1 represents 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, or a cyclic ring system with 3-14 ring atoms, by reacting a 3-alkoxyacrylic acid alkyl ester for formula wherein R2, R3 independently means C1-C6-alkyl or C3-C6 cycloalkyl, with a hydrazine or formula wherein R1 has the above cited meaning, a) at a pH value of 6-11 to form 5-hydroxypyrazoles of formula or b) at a pH value of 11-14 to form 3-hydroxypyrazoles of formula (II).

    17.
    发明专利
    未知

    公开(公告)号：NO318052B1

    公开(公告)日：2005-01-24

    申请号：NO20012470

    申请日：2001-05-18

    Applicant: BASF AG

    Inventor： GOTZ NORBERT ,  RACK MICHAEL ,  GOTZ ROLAND ,  MAYWALD VOLKER ,  STEINMETZ ADRIAN ,  HENKELMANN JOCHEM ,  BECKER HEIKE ,  BAYETO JUAN JOSE AISCAR

    IPC: C07D231/20

    Abstract: The invention relates to a process for preparing 1-substituted 5- and/or 3-hydroxypyrazoles of the formulae I and IIin 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 reactingan alkyl 3-alkoxyacrylate of the formula IIIin which R2, R3 independently of one another are C1-C6-alkyl or C3-C6-cycloalkyl with a hydrazine of the formula IVin which R1 is as defined abovea) at a pH of 6-11 to give 5-hydroxypyrazoles of the formula I orb) at a pH of 11-14 to give 3-hydroxypyrazoles of the formula II.

    18.
    发明专利
    未知

    公开(公告)号：ES2207988T3

    公开(公告)日：2004-06-01

    申请号：ES99972625

    申请日：1999-11-06

    Applicant: BASF AG

    Inventor： MAYWALD VOLKER ,  STEINMETZ ADRIAN ,  RACK MICHAEL ,  GOTZ NORBERT ,  GOTZ ROLAND ,  HENKELMANN JOCHEM

    IPC: C07D231/20

    Abstract: The invention relates to a process for preparing 1-substituted 5- and/or 3-hydroxypyrazoles of the formulae I and IIin 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 reactingan alkyl 3-alkoxyacrylate of the formula IIIin which R2, R3 independently of one another are C1-C6-alkyl or C3-C6-cycloalkyl with a hydrazine of the formula IVin which R1 is as defined abovea) at a pH of 6-11 to give 5-hydroxypyrazoles of the formula I orb) at a pH of 11-14 to give 3-hydroxypyrazoles of the formula II.

    19.
    发明专利
    未知

    公开(公告)号：PT1131299E

    公开(公告)日：2004-02-27

    申请号：PT99972625

    申请日：1999-11-06

    Applicant: BASF AG

    Inventor： HENKELMANN JOCHEM ,  RACK MICHAEL ,  GOTZ NORBERT ,  MAYWALD VOLKER ,  GOTZ ROLAND ,  STEINMETZ ADRIAN ,  BECKER HEIKE ,  BAYETO JUAN JOSE AISCAR

    IPC: C07D231/20

    Abstract: The invention relates to a process for preparing 1-substituted 5- and/or 3-hydroxypyrazoles of the formulae I and IIin 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 reactingan alkyl 3-alkoxyacrylate of the formula IIIin which R2, R3 independently of one another are C1-C6-alkyl or C3-C6-cycloalkyl with a hydrazine of the formula IVin which R1 is as defined abovea) at a pH of 6-11 to give 5-hydroxypyrazoles of the formula I orb) at a pH of 11-14 to give 3-hydroxypyrazoles of the formula II.

    СПОСОБ ПОЛУЧЕНИЯ 1-ЗАМЕЩЕННЫХ 5- ИЛИ 3-ГИДРОКСИПИРАЗОЛОВ
    20.
    发明专利
    СПОСОБ ПОЛУЧЕНИЯ 1-ЗАМЕЩЕННЫХ 5- ИЛИ 3-ГИДРОКСИПИРАЗОЛОВ 未知

    公开(公告)号：EA003753B1

    公开(公告)日：2003-08-28

    申请号：EA200100522

    申请日：1999-11-06

    Applicant: BASF AG

    Inventor： MAYWALD VOLKER ,  STEINMETZ ADRIAN ,  RACK MICHAEL ,  GOETZ ROLAND ,  HENKELMANN JOCHEM ,  BECKER HEIKE ,  AISCAR BAYETO JUAN JOSE ,  GOETZ NORBERT

    IPC: C07D231/20

    Abstract: Изобретениеотноситсяк способуполучения 1-замещенных 5- и/или 3-гидроксипиразоловформул I и IIгде Rозначает C-Салкил, C-Салкенил, C-Салкинил, C-СциклоалкилилиС-Салкокси, причемэтигруппымогутбытьзамещеныгалогеном, C-Салкокси, фенокси, C-Салкоксикарбонилом, C-Салкилтиокарбониломилициклическойсистемойс 3-14 атомамицикла, причемсложныйалкиловыйэфир 3-алкоксиакриловойкислотыформулы IIIгде R, Rнезависимодруготдругаозначают C-Салкилили C-Сциклоалкил, подвергаютвзаимодействиюс гидразиномформулы IVгде Rимеетвышеприведенноезначение,а) сполучениемпризначениирН, равном 6-11, 5-гидроксипиразоловформулы Iилиб) сполучениемпризначениирН, равном 11-14, 3-гидроксипиразоловформулы II.

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