中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

743 records (took 0.053 seconds)

    Method for producing 1-substituted 5- or 3-hydroxypyrazoles
    113.
    发明专利
    Method for producing 1-substituted 5- or 3-hydroxypyrazoles 未知

    公开(公告)号：AU1380900A

    公开(公告)日：2000-06-13

    申请号：AU1380900

    申请日：1999-11-06

    Applicant: BASF AG

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

    PROCESS FOR PREPARING NITROBIPHENYLENE
    116.
    发明专利
    PROCESS FOR PREPARING NITROBIPHENYLENE 未知

    公开(公告)号：HU9902419A2

    公开(公告)日：1999-11-29

    申请号：HU9902419

    申请日：1997-03-06

    Applicant: BASF AG

    Inventor： EICKEN KARL ,  GEBHARDT JOACHIM ,  RACK MICHAEL ,  RANG HARALD ,  SCHAEFER PETER

    IPC: B01J31/24 ,  C07B37/04 ,  C07B61/00 ,  C07C201/12 ,  C07C205/06 ,  C07C205/11 ,  C07C205/12 ,  C07C205/35 ,  C07C253/30

    Abstract: The invention concerns a process for preparing nitrobiphenylene of formula (I) wherein m stands for 1 or 2, R means halogen, R' or OR', R' being a C-organic group which can carry groups which are inert in the reaction conditions, n stands for 0, 1, 2 or 3 and, if n is 2 or 3, the R groups can also be different. According to the invention, a chloronitrobenzene of formula (II) is reacted in the presence of a palladium catalyst and a base in a solvent with a phenyl boric acid (IIIa), one of its alkyl esters of formula (IIIb), R meaning C1-C6 alkyl, or one of its anhydrides. The compounds (I) are suitable as initial products for biphenylamines which are in turn intermediate products for fungicidal plant-growth substances.

    Substituted 2-benz(O)ylpyridines.
    120.
    发明专利
    Substituted 2-benz(O)ylpyridines. 未知

    公开(公告)号：ZA982327B

    公开(公告)日：1999-09-20

    申请号：ZA982327

    申请日：1998-03-19

    Applicant: BASF AG

    Inventor： SCHAEFER PETER ,  HAMPRECHT GERHARD ,  MENGES MARKUS ,  MENKE OLA ,  RACK MICHAEL ,  ZAGAR CYRILL ,  WESTPHALEN KARL-OTTO ,  MISLITZ U ,  WALTER HELMUT

    IPC: A01N43/40 ,  C07D213/61 ,  C07D401/12 ,  C07D405/12 ,  C07D ,  A01N

    Abstract: Substituted 2-benz(o)ylpyridines Iand salts thereof wheren=0, 1;X=CO, CH2, CH(C1-C4-alkyl), CH-OH, CH-CN, CH-halogen, C(halogen)2, CH-CONH2, CH-CO-O(C1-C4-alkyl), CH-O(C1-C4-alkyl), C(CN)(C1-C4-alkyl);R1=halogen, C1-C4-haloalkyl, C1-C4-alkylthio, C1-C4-alkylsulfinyl, C1-C4-alkylsulfonyl;R2=H, halogen;R3=H, NO2, OH, halogen, C1-C4-alkoxy;R4=H, NO2, OH, halogen, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy;R5=H, NO2, CN, halogen, C1-C8-alkyl, C3-C8-alkenyl, C3-C8-alkynyl, C3-C8-cycloalkyl, C1-C8-haloalkyl, C2-C8-haloalkenyl, C2-C8-haloalkinyl, C1-C4-alkoxy-C1-C4-alkyl, C2-C4-alkenyloxy-C1-C4-alkyl, C2-C4-alkynyloxy-C1-C4-alkyl, C1-C4-alkylthio-C1-C4-alkyl, C1-C4-alkylsulfinyl-C1-C4-alkyl, C1-C4-alkylsulfonyl-C1-C4-alkyl, cyano-C1-C8-alkyl, cyano-C2-C8-alkenyl, cyano-C3-C8-alkynyl, unsubstituted or substituted OH, SH, SO-H, -SO2-H, COOH or NH-COOH, -SO2Cl, -N(R9,R10), -NH-SO2-(C1-C8-alkyl), -N[-SO2-(C1-C8-alkyl)]2, -N(C1-C8-alkyl)[-SO2-(C1-C8-alkyl)], -SO2-N(R9,R10), -O-CO-NH-R9, unsubstituted or substituted CHO, -O-CHO or -NH-CHO, -NH-CO-NH-R9, -O-CS-NH2, -O-CS-N(C1-

Patent Agency Ranking