DIUREIDE AND ITS USE
    3.
    发明专利

    公开(公告)号:JP2000351684A

    公开(公告)日:2000-12-19

    申请号:JP2000053926

    申请日:2000-02-29

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To use a specific dicarboxylic acid diureide as a slow-acting fertilizer for nitrogenous fertilizers through combination with other commonly used fertilizers or additives so as to effect delayed release of a plurality of nutrients contained for crops and sustain the tolerance of crops to the fertilizers and the action of such fertilizers. SOLUTION: A dicarboxylic acid diureide shown by the formula [R is H or SO2OM+; M+ is Li, Na, K, CS, NH4, Cu, Ag, 0.5 Fe, 0.5Ca, 0.5Mg, 0.5Mn, 0.5Zn or 0.5Co; X is a straight-chain or branched 1-8C alkyl having one saturated or unsaturated group (pref. (CH2)n, n is 1-4) and, optionally, discontinued by O or NH, or having a 1-4C alkoxyhydroxy and/or amino group(s)] is uses as a slow-acting fertilizer. This compound of the formula is obtained, for example, by reacting the corresponding carboxylic acid diamide with chlorosulfonyl isocyanate at -20 to 20 deg.C followed by reaction with an aqueous solution of M2CO3 at -10 to 0 deg.C.

    7.
    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

    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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