中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

43 records (took 0.027 seconds)

    21.
    发明专利
    未知

    公开(公告)号：ES2169480T3

    公开(公告)日：2002-07-01

    申请号：ES98306988

    申请日：1998-09-01

    Applicant: BASF AG

    Inventor： KAMESWARAN VENKATARAMAN

    IPC: C07D239/52 ,  C07D401/12 ,  C07D403/12 ,  C07D413/12 ,  C07D417/12

    Abstract: Preparation of an unsymmetrical 4,6-bis(aryloxy)pyrimidine derivatives of formula (I) is new. The process comprises reacting a 4-halo-6-(aryloxy)pyrimidine compound of formula (II) with >=1 molar equivalent of a 1-4C trialkylamine, a 5-14 membered unsaturated heterocyclic amine optionally substituted to 1-3 1-4C alkyl, or 1-4C alkoxy groups in the presence of an aromatic hydrocarbon and/or a halogenated aromatic hydrocarbon solvents, to form an ammonium halide of formula (III), and reacting the ammonium halide with >=1 phenyl compound of formula (IV) and a base. R1, R8 = H or halo; R1, R7 = H halo, CN, NO2 alkyl, haloalkyl, alkoxy, alkylthio, amino, alkylamino, dialkylamino, alkoxyalkyl, haloalkoxyalkyl or alkoxycarbonyl; R2, R6 = H, halo, alkyl, haloalkyl, haloalkoxy, haloalkoxyalkyl, alkoxycarbonyl, haloalkoxycarbonyl, haloalkylsulphinyl, haloalkylsulphonyl, nitro, or cyano; R3, R5 = H, halo, alkyl or alkoxy; and R4 = H, cyano, alkyl, haloalkyl, alkoxy, alkylthio, alkylsulphinyl, or phenyl; provided that >= 1 of R2 and R6 is not H, and that the aryloxy groups are different. Q = R10N(R9)(R11) or substituted heteroaryl groups of formulae (a)-(g). R9, R10, R11 = 1-4C alkyl, or R910 = 5-6 membered ring with 3-5 O, S or NR-14 atoms; R11 = 1-4C alkyl; Z = O, S or NR14; R12, R13 = H, 1-4C alkyl, 1-4C alkoxy; or R12, R13 = 5-6 membered saturated or unsaturated ring optionally interrupted with O, S, or NR14, and optionally substituted with 1-3 1-4C alkyl or 1-4C alkoxy groups; and R14 = 1-4C alkyl.

    23.
    发明专利
    未知

    公开(公告)号：DE60014471D1

    公开(公告)日：2004-11-11

    申请号：DE60014471

    申请日：2000-03-06

    Applicant: BASF AG

    Inventor： KAMESWARAN VENKATARAMAN

    IPC: C07D405/04 ,  C07C233/66 ,  C07C233/69 ,  C07C251/24 ,  C07C257/02 ,  C07D207/02 ,  C07D207/34 ,  C07D207/42 ,  C07D409/04

    Abstract: There is provided a process for the preparation of 2-aryl-5-(perfluoroalkyl)pyrrole compounds of formula I from N-Ä1-chloro-1-(perfluoroalkyl)methylÜarylimidoyl chloride compounds. The 2-aryl-5-(perfluoroalkyl)pyrrole compounds are useful for the control of insect and acarid pests, and may also be used to prepare other pesticidal arylpyrrole compounds. In addition, the present invention provides compounds which are useful as intermediates in the preparation of arylpyrrole compounds.

    27.
    发明专利
    未知

    公开(公告)号：ES2170785T3

    公开(公告)日：2002-08-16

    申请号：ES95308298

    申请日：1995-11-21

    Applicant: BASF AG

    Inventor： KAMESWARAN VENKATARAMAN

    IPC: C07D263/48 ,  A01N43/36 ,  C07D207/327 ,  C07D207/335 ,  C07D207/34 ,  C07D405/04 ,  C07D409/04 ,  C07D413/04

    Abstract: Prodn. of 2-aryl-5-perfluoroalkyl-pyrrole-3-carbonitriles of formula (I) comprises reacting a 5-acylamino-4-aryl-2-perfluoroalkyloxazole of formula (II) or a tautomer of (II), with at least 1 molar equiv. of a 2-haloacrylonitrile or 2,-3-dihalopropionitrile in the presence of a base and opt. a solvent. n = 1-8; A = a gp. of formula e.g. (A1): L = H or halo; M,Q = H, halo, CN, NO2,etc.; or adjacent M+Q = OCH2O, OCF2O or CH=CH-CH=CH; R = 1-6C alkyl, 1-6C haloalkyl, COOR1,etc.; R1 = 1-4C alkyl or 1-4C haloalkyl.

    28.
    发明专利
    未知

    公开(公告)号：DE69802636T2

    公开(公告)日：2002-08-01

    申请号：DE69802636

    申请日：1998-09-01

    Applicant: BASF AG

    Inventor： KAMESWARAN VENKATARAMAN

    IPC: C07D239/52 ,  C07D401/12 ,  C07D403/12 ,  C07D413/12 ,  C07D417/12

    Abstract: Preparation of an unsymmetrical 4,6-bis(aryloxy)pyrimidine derivatives of formula (I) is new. The process comprises reacting a 4-halo-6-(aryloxy)pyrimidine compound of formula (II) with >=1 molar equivalent of a 1-4C trialkylamine, a 5-14 membered unsaturated heterocyclic amine optionally substituted to 1-3 1-4C alkyl, or 1-4C alkoxy groups in the presence of an aromatic hydrocarbon and/or a halogenated aromatic hydrocarbon solvents, to form an ammonium halide of formula (III), and reacting the ammonium halide with >=1 phenyl compound of formula (IV) and a base. R1, R8 = H or halo; R1, R7 = H halo, CN, NO2 alkyl, haloalkyl, alkoxy, alkylthio, amino, alkylamino, dialkylamino, alkoxyalkyl, haloalkoxyalkyl or alkoxycarbonyl; R2, R6 = H, halo, alkyl, haloalkyl, haloalkoxy, haloalkoxyalkyl, alkoxycarbonyl, haloalkoxycarbonyl, haloalkylsulphinyl, haloalkylsulphonyl, nitro, or cyano; R3, R5 = H, halo, alkyl or alkoxy; and R4 = H, cyano, alkyl, haloalkyl, alkoxy, alkylthio, alkylsulphinyl, or phenyl; provided that >= 1 of R2 and R6 is not H, and that the aryloxy groups are different. Q = R10N(R9)(R11) or substituted heteroaryl groups of formulae (a)-(g). R9, R10, R11 = 1-4C alkyl, or R910 = 5-6 membered ring with 3-5 O, S or NR-14 atoms; R11 = 1-4C alkyl; Z = O, S or NR14; R12, R13 = H, 1-4C alkyl, 1-4C alkoxy; or R12, R13 = 5-6 membered saturated or unsaturated ring optionally interrupted with O, S, or NR14, and optionally substituted with 1-3 1-4C alkyl or 1-4C alkoxy groups; and R14 = 1-4C alkyl.

    29.
    发明专利
    未知

    公开(公告)号：DE69525021T2

    公开(公告)日：2002-07-18

    申请号：DE69525021

    申请日：1995-11-21

    Applicant: BASF AG

    Inventor： KAMESWARAN VENKATARAMAN

    IPC: C07D263/48 ,  A01N43/36 ,  C07D207/327 ,  C07D207/335 ,  C07D207/34 ,  C07D405/04 ,  C07D409/04 ,  C07D413/04

    Abstract: Prodn. of 2-aryl-5-perfluoroalkyl-pyrrole-3-carbonitriles of formula (I) comprises reacting a 5-acylamino-4-aryl-2-perfluoroalkyloxazole of formula (II) or a tautomer of (II), with at least 1 molar equiv. of a 2-haloacrylonitrile or 2,-3-dihalopropionitrile in the presence of a base and opt. a solvent. n = 1-8; A = a gp. of formula e.g. (A1): L = H or halo; M,Q = H, halo, CN, NO2,etc.; or adjacent M+Q = OCH2O, OCF2O or CH=CH-CH=CH; R = 1-6C alkyl, 1-6C haloalkyl, COOR1,etc.; R1 = 1-4C alkyl or 1-4C haloalkyl.

Patent Agency Ranking