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    USE OF LOW-VOLATILITY PYRAZOLE DERIVATIVES HAVING HYDROPHILIC GROUPS AS NITRIFICATION INHIBITORS
    21.
    发明专利
    USE OF LOW-VOLATILITY PYRAZOLE DERIVATIVES HAVING HYDROPHILIC GROUPS AS NITRIFICATION INHIBITORS 未知

    公开(公告)号：CA2210529A1

    公开(公告)日：1996-08-15

    申请号：CA2210529

    申请日：1996-01-26

    Applicant: BASF AG

    Inventor： RITTINGER STEFAN ,  RIEBER NORBERT ,  DRESSEL JUERGEN ,  GOLD RANDALL EVAN

    IPC: C05G3/90 ,  C07D231/12 ,  C07D231/16 ,  C09K17/14 ,  C09K101/00 ,  C05G3/08

    Abstract: Pyrazol derivatives having general formula (I) are disclosed, as well as their use as nitrification inhibitors. In said formula (I): residues R1, R2, R3 and R4 may be substituted once or twice by halogen and/or hydroxyl; the residues R1, R2 and R3 stand for halogen, nitro, hydrogen, C1-C20-alkyl, C3-C8-cycloalkyl, C5-C20-aryl or alkyl aryl; and R4 may stand for (a) a residue R4a of the formula (II), in which R5 and R6 stand for hydrogen, C1-C20-alkyl optionally substituted once or twice by halogen and/or hydroxyl, a carboxyl group, a carboxymethyl group or a functional derivative of both latter groups, and R7 stands for a carboxyl residue or a carboxy-(C1-C3-alkyl) residue or for a functional derivative of said groups, or R4 may stand for (b) a residue R4b having the formula (III), in which R8 and R9 stand for hydrogen, C1-C20-alkyl, C2-C8-cycloalkyl, C5-C20-aryl or alkyl aryl, these residues being optionally substituted once or twice by halogen, and R10 stands for hydrogen or a poly (C2-C4-alkylene oxide) residue whose terminal hydroxyl group may be etherified with an aliphatic C1-C10 alcohol or esterified with a C1-C10 carboxylic acid.

    USE OF PYRAZOLE DERIVATIVES CONTAINING HYDROPHOBIC RADICALS AS NITRIFICATION INHIBITORS
    22.
    发明专利
    USE OF PYRAZOLE DERIVATIVES CONTAINING HYDROPHOBIC RADICALS AS NITRIFICATION INHIBITORS 未知

    公开(公告)号：CA2208529A1

    公开(公告)日：1996-07-04

    申请号：CA2208529

    申请日：1995-12-14

    Applicant: BASF AG

    Inventor： RITTINGER STEFAN ,  GOLD RANDALL EVAN ,  DRESSEL JUERGEN ,  RIEBER NORBERT

    IPC: C05G3/90 ,  C07D231/12 ,  C07D231/16 ,  C07D521/00 ,  C08J3/24 ,  C05G3/08

    Abstract: Disclosed is the use as nitrification inhibitors of pyrazole derivatives of formula (I), or salts thereof, in which the groups R1-R4 have the following meanings: R1, R2 and R3 represent C1-C20 alkyl, C3-C8 cycloalkyl, C5-C20 aryl or alkyl aryl (these four groups can be singly or doubly substituted by a halogen and/or hydroxyl), and halogen, nitro or hydrogen; and R4 represents either (a) C6-C20 alkyl, one or two hydrogen atoms being optionally substituted by a halogen; or (b) C1-C20 alkyl. In the latter case, 1-4 hydrogen atoms can be substituted by a group of formula (II), in which R5, R6, and R7 represent C1-C20 alkyl, C3-C8 cycloalkyl, C5-C20 aryl or alkyl aryl (these four groups can be singly or doubly substituted by a halogen and/or hydroxyl), as well as halogen, nitro or hydrogen; and 1 or two hydrogen atoms are optionally substituted by a halogen.

    29.
    发明专利
    未知

    公开(公告)号：ES2217046T3

    公开(公告)日：2004-11-01

    申请号：ES01105436

    申请日：1997-08-06

    Applicant: BASF AG

    Inventor： BARTH THOMAS ,  RIEBER NORBERT ,  GOLD RANDALL EVAN ,  DRESSEL JUERGEN ,  ERHARDT KLAUS ,  RITTINGER STEFAN

    IPC: C05F3/00 ,  C05G3/00 ,  C05G3/90 ,  C05G5/00 ,  C07D231/12 ,  C07D231/16 ,  C07D321/12 ,  C07D521/00 ,  C05G3/08

    Abstract: The use of inorganic or organic poly acids is claimed for treating mineral fertilisers containing a nitrification inhibitor. The use of compounds of formula (I) is claimed as nitrification inhibitors. R1 = H, halo or 1-4C alkyl; R2 = 1-4C alkyl; R3 = H or CH2OH, and when R3 = H, the compound may be converted to a phosphoric acid salt. A mineral fertiliser containing a poly acid and optionally (I) is also claimed. 3,4-dimethylpyrazole (Ia), 4-chloro-3-methyl-pyrazole (Ib), N-hydroxymethyl-3,4-dimethylpyrazole (Ic), N-hydroxymethyl-4-chloro-3-methylpyrazole (Id), acid addition salts of (Ic) and (Id), and mixtures of two or more of (Ia)-(d) are new.

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