中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

39 records (took 0.021 seconds)

    12.
    发明专利
    未知

    公开(公告)号：AT249426T

    公开(公告)日：2003-09-15

    申请号：AT99125660

    申请日：1999-12-22

    Applicant: BASF AG

    Inventor： KESSEL KNUT ,  KLUGE MICHAEL ,  GREINDL THOMAS ,  BOGENSTAETTER THOMAS ,  SCHERR GUENTER ,  RAULS MATTHIAS ,  VAN GELDER RICHARD

    IPC: C07C277/08 ,  C07C279/14 ,  C07C303/22 ,  C07C309/15 ,  C07F9/38

    Abstract: Preparation of guanidine derivatives (I) comprises reacting O-alkylisourea salts (II) with an amine (III) in the presence of seed crystals of (I). Preparation of guanidine derivatives of formula (I) comprises reacting O-alkylisourea salts of formula (II) with an amine of formula (III) in the presence of seed crystals of (I). R1 = 1-8C alkylene or a divalent 5-10C cycloaliphatic group; R2 = H or 1-8C alkyl; or NR1R2 = 5-6 membered ring substituted by Z; Z = COOR3, SO2OR3 or PO(OR3)(OR4); R3 = H, alkalimetal or an equivalent of an alkaline earth metal; and R4 = as for R3 or 1-6C alkyl; R5 = 1-8C alkyl; X = equivalent of an anion.

    16.
    发明专利
    未知

    公开(公告)号：NO955049D0

    公开(公告)日：1995-12-13

    申请号：NO955049

    申请日：1995-12-13

    Applicant: BASF AG

    Inventor： GREINDL THOMAS ,  SLOTMAN WILHELMUS

    IPC: C09K8/528 ,  E21B37/06 ,  E21B

    Abstract: Use of glycine-N,N-diacetic acid derivs. of formula (I) as complexing agents for alkaline earth and heavy metal ions in the recovery and transport of crude oil and natural gas is claimed. R=1-30C alkyl or 2-30C alkenyl additionally contg. up to 5 OH's, formyl gps., 1-4C alkoxy, phenoxy or 1-4C alkoxycarbonyl, and which can be interrupted by up to 5 non-neighbouring O atoms, alkoxylate gps. of formula: -(CH2)k-O-(A1O)m-(A2O)n-Y (where A1 and A2=1,2-alkylene with 2-4C atoms; Y=H, 1-12C alkyl, phenyl, or 1-4C alkoxycarbonyl; and k=1-3; m and n=0-50; m+n=at least 4); 1-20C phenylalkyl gps.; a 5- or 6-membered (un)satd. heterocyclic ring with up to 3 heteroatoms selected from N, O and S, which can be benzanellated; 1-20C alkyl, where all phenyl cores and heterocyclic rings additionally contain up to 3 1-4C alkyls, OH, carboxyl, sulpho groups or 1-4C alkoxycarbonyl groups; or a residue of formula (II). A=1-12C alkylene bridges or a chemical bond; M=H, alkali(ne earth), NH4 or substd. NH4.

    19.
    发明专利
    未知

    公开(公告)号：ES2207907T3

    公开(公告)日：2004-06-01

    申请号：ES99125660

    申请日：1999-12-22

    Applicant: BASF AG

    Inventor： KESSEL KNUT ,  KLUGE MICHAEL ,  GREINDL THOMAS ,  BOGENSTATTER THOMAS ,  SCHERR GUNTER ,  RAULS MATTHIAS

    IPC: C07C277/08 ,  C07C279/14 ,  C07C303/22 ,  C07C309/15 ,  C07F9/38

    Abstract: Preparation of guanidine derivatives (I) comprises reacting O-alkylisourea salts (II) with an amine (III) in the presence of seed crystals of (I). Preparation of guanidine derivatives of formula (I) comprises reacting O-alkylisourea salts of formula (II) with an amine of formula (III) in the presence of seed crystals of (I). R1 = 1-8C alkylene or a divalent 5-10C cycloaliphatic group; R2 = H or 1-8C alkyl; or NR1R2 = 5-6 membered ring substituted by Z; Z = COOR3, SO2OR3 or PO(OR3)(OR4); R3 = H, alkalimetal or an equivalent of an alkaline earth metal; and R4 = as for R3 or 1-6C alkyl; R5 = 1-8C alkyl; X = equivalent of an anion.

    20.
    发明专利
    未知

    公开(公告)号：DE59808082D1

    公开(公告)日：2003-05-28

    申请号：DE59808082

    申请日：1998-08-17

    Applicant: BASF AG

    Inventor： RAHM RAINER ,  GREINDL THOMAS ,  OFTRING ALFRED ,  OETTER GUENTER ,  DETERING JUERGEN ,  BRAUN GEROLD

    IPC: C07C229/08 ,  C07C229/16 ,  C07C253/00 ,  C07C255/25 ,  C07D233/72 ,  C07D233/74

    Abstract: A process for preparing compounds of the formula IIb where R is C6-C30-alkyl or C6-C30-alkenyl, which may additionally have upto 5 hydroxyl groups, formyl groups, C1-C4-alkoxy groups, phenoxy groups or C1-C4-alkoxycarbonyl groups as substituents and may be interrupted by upto 5 nonadjacent oxygen atoms, or alkoxylate groups of the formula -(CH2)k-O-(A1O)m-(A2O)n-Y where A1 and A2 are, independently of one another, 1,2-alkylene groups having 2 to 4 carbon atoms, Y is hydrogen, C1-C12-alkyl, phenyl or C1-C4-alkoxycarbonyl, and k is 1, 2 or 3, and m and n are each numbers from 0 to 50, and the total of m+n must be at least 4,by reacting iminodiacetonitrile with aldehydes of the formula R-CHO and HCN or alkali metal cyanides, the process being carried outa) in the absence of an organic solvent and in the presence of a Lewis or Brönsted acid, orb) in the presence or absence of an organic solvent and in the presence of an emulsifier, orc) in the presence or absence of an organic solvent and under a pressure in the range from 1 to 40 bar.

Patent Agency Ranking