3.
    发明专利
    未知

    公开(公告)号:DK0788475T3

    公开(公告)日:1999-12-20

    申请号:DK95917966

    申请日:1995-04-26

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP95/01581 Sec. 371 Date Nov. 4, 1996 Sec. 102(e) Date Nov. 4, 1996 PCT Filed Apr. 26, 1995 PCT Pub. No. WO95/30648 PCT Pub. Date Nov. 16, 1995Preparation of mixtures of O-phenoxyalkylhydroxylamines Ia and Ib (Ia): H2NOCH2CH(R1)OAr (Ib): H2NOCH(R1)CH2OAr and the corresponding salt mixtures by a) converting mixtures of isomers of O-(2-hydroxyethyl)oximes IIa and IIb (IIa): (III): into a mixture of sulfonates IVa and IVb (IVa): (IVb): b) reacting this mixture of IVa and IVb with a phenol HO-Ar (V) to give a mixture of O-phenoxyalkoximes VIa and VIb (VIa): (VIb): c) hydrolyzing this mixture in the presence of an acid and, if desired d) liberating the O-phenoxyalkylhydroxylamines Ia and Ib from the resulting salts using a mineral acid. Compounds Ia/Ib and VIa/VIb are important intermediates for crop protection agents.

    4.
    发明专利
    未知

    公开(公告)号:PT839138E

    公开(公告)日:2004-10-29

    申请号:PT96924848

    申请日:1996-07-02

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/02891 Sec. 371 Date Jan. 8, 1998 Sec. 102(e) Date Jan. 8, 1998 PCT Filed Jul. 2, 1996 PCT Pub. No. WO97/03969 PCT Pub. Date Feb. 6, 1997N-substituted 3-hydroxypyrazoles of the formula I where R1 is unsubstituted or substituted alkyl, aryl or heteroaryl and R2, R3 is hydrogen, cyano, halogen or unsubstituted or substituted alkyl, aryl or heteroaryl, are prepared by oxidation of a corresponding pyrazolidin-3-one with atmospheric oxygen in the presence of a metal salt in an essentially pH-neutral medium.

    5.
    发明专利
    未知

    公开(公告)号:DK0805797T3

    公开(公告)日:1999-10-18

    申请号:DK96900963

    申请日:1996-01-17

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/00170 Sec. 371 Date Jul. 7, 1997 Sec. 102(e) Date Jul. 7, 1997 PCT Filed Jan. 17, 1996 PCT Pub. No. WO96/22967 PCT Pub. Date Aug. 1, 1996A process for preparing aromatic or heteroaromatic hydroxylamines of the general formula I (I) where R1 is an unsubstituted or substituted aryl radical or an unsubstituted or substituted hetaryl radical from the pyridine or quinoline groups, by hydrogenation of nitro compounds of the general formula IIR1-NO2(II)where R1 has the meaning indicated above, in the presence of a platinum catalyst on an activated carbon support or in the presence of a palladium catalyst doped with sulfur or selenium on an activated carbon support, by carrying out the reaction in the presence of a nitrogen-substituted morpholine compound of the general formula III (III) R2 being alkyl radicals having 1 to 5 carbon atoms and R3 to R10 being hydrogen atoms or alkyl radicals having 1 to 5 carbon atoms is described.

    7.
    发明专利
    未知

    公开(公告)号:ES2215780T3

    公开(公告)日:2004-10-16

    申请号:ES00987303

    申请日:2000-11-27

    Applicant: BASF AG

    Abstract: A process for preparing o-chloromethylbenzoyl chlorides of the formula I,in which R to R can be identical or different and are hydrogen, C1-C4-alkyl, halogen or trifluoromethyl, by reacting benzo-fused lactones of the formula II,in which R to R are as defined above, with thionyl chloride, which comprises carrying out the reaction in the presence of catalytic amounts of boric acid, boric anhydride, borate, boronic acid or boronic acid esters and catalytic amounts of a quaternary ammonium salt is described.

Patent Agency Ranking