中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

137 records (took 0.023 seconds)

    53.
    发明专利
    未知

    公开(公告)号：DE4142192C2

    公开(公告)日：1996-02-29

    申请号：DE4142192

    申请日：1991-12-20

    Applicant: BASF AG

    Inventor： LAMM GUNTHER DR ,  LOEFFLER HERMANN ,  REICHELT HELMUT DR

    IPC: C07D213/74 ,  C07D213/84 ,  C07D213/85 ,  C07D405/12

    Abstract: PCT No. PCT/EP93/00538 Sec. 371 Date Jun. 17, 1994 Sec. 102(e) Date Jun. 17, 1994 PCT Filed Mar. 10, 1993 PCT Pub. No. WO94/20469 PCT Pub. Date Sep. 15, 1994.A process for preparing diaminopyridines of the formula where one of the two radicals X1 and X2 is hydrogen, C1-C4-alkyl, halogen or nitro and the other is cyano, R1 is hydrogen, C1-C4-alkyl or phenyl, R2 and R3 are each hydrogen, C1-C4-alkyl or C1-C4-alkoxy, R4 is hydrogen or C1-C4-alkyl, and R5 is optionally substituted C1-C10-alkyl, C3-C4-alkenyl or C5-C7-cycloalkyl, by reacting dichloropyridines of the formula (II) in a first step with an amine of the formula R5-NH2 at from 10 DEG to 80 DEG C. in the presence of a base and of an inert organic diluent and/or water, then removing the diluent and thereafter, with or without prior intermediate isolation of the reaction product, comprises carrying out the second step in a melt at from 90 DEG to 165 DEG C. and at a pH from 3.5 to 6.5 using from 1.3 to 3 mol of aniline IV are used per mole of dichloropyridine II.

    54.
    发明专利
    未知

    公开(公告)号：DE4416266A1

    公开(公告)日：1995-11-09

    申请号：DE4416266

    申请日：1994-05-07

    Applicant: BASF AG

    Inventor： LAMM GUNTHER DR ,  REICHELT HELMUT DR ,  WIESENFELDT MATTHIAS DR

    IPC: C07D213/71 ,  C09B33/12 ,  C09B33/28 ,  D06P1/39 ,  C07D213/85 ,  C07D413/10 ,  C07D417/08 ,  C07D521/00

    Abstract: Bis(5-azo-6-hydroxy-4-methyl-3-hydroxysulphonyl-pyrid-2-on- 1-yl) dyes (I) of formula (A), in the form of free acids or their salts, are claimed. In A, A and Y are each -SO3H; Z is D-N=N-; D is the residue of a diazo component; and X is a 2-8 C alkylene opt. with an ether O atom in the chain. Also claimed are bis(6-hydroxy-4-methy-3-hydroxysulphonyl-pyrid-2-on-1-yl) cpds. (II) of formula (A), in which Y is -SO3H and Z is H, in the form of the free acids or salts, and the prepn. of (II).

    55.
    发明专利
    未知

    公开(公告)号：DE58908357D1

    公开(公告)日：1994-10-20

    申请号：DE58908357

    申请日：1989-09-29

    Applicant: BASF AG

    Inventor： HANSEN GUENTER DR ,  LAMM GUNTHER DR ,  REICHELT HELMUT DR ,  SCHEFCZIK ERNST DR

    IPC: C09B29/042 ,  C09B29/00 ,  C09B29/048 ,  C09B29/36 ,  D06P1/18

    Abstract: Thiazole azo dyes of the formula … … in which… X is nitrogen or the radical C-R where R is cyano, halogen, alkoxycarbonyl or thiocyanato,… R is cyano, chlorine, optionally substituted C1-C6-alkyl, optionally substituted phenyl, optionally substituted thienyl, optionally substituted pyridyl or optionally substituted alkylthio-, -sulphinyl- or -sulphonyl,… R is optionally substituted alkyl, cycloalkyl, optionally substituted phenyl, furyl, optionally substituted thienyl or pyridyl and… R and R are, independently of one another, optionally substituted alkyl or R and R together with the nitrogen atom connecting them are a heterocyclic radical, and the use of these dyes for colouring textile fibres.

    57.
    发明专利
    未知

    公开(公告)号：DE4142696A1

    公开(公告)日：1993-07-01

    申请号：DE4142696

    申请日：1991-12-21

    Applicant: BASF AG

    Inventor： LAMM GUNTHER DR ,  MAYER UDO DR ,  REICHELT HELMUT DR ,  ZEIDLER GEORG

    IPC: C09B33/04 ,  C09B33/18 ,  C09B33/24 ,  C09B45/24

    Abstract: Polyazo dyes of the formula in free form or as the copper, chromium, iron, cobalt or nickel complex, where p denotes 1 or 2 and q denotes 0 or 1, and R , R , R , R , R , R , R , R , X , X and the rings A and B in each case have the meaning mentioned in the description, and the use of the novel polyazo dyes for dyeing leather.

    58.
    发明专利
    未知

    公开(公告)号：DE3780076D1

    公开(公告)日：1992-08-06

    申请号：DE3780076

    申请日：1987-04-28

    Applicant: BASF AG

    Inventor： DEHNERT JOHANNES DR ,  LAMM GUNTHER DR ,  LOEFFLER HERMANN

    IPC: C07D213/85 ,  C07D409/12 ,  C07D417/12 ,  C09B29/00 ,  C09B29/036 ,  C09B29/34 ,  C09B29/36 ,  C09B29/42

    Abstract: Benzene (1-azo-5), 3-cyanothiophen (2-azo-5), 4-cyano-isothiazole (5-azo-5) and 5-nitro-, 5-alkoxycarbonyl-, 5-cyano- or 5-formyl-thiazole (2-azo-5) 6-amino- 2-acyloxy(alkoxy) alkylamino-4-methyl- 3-cyano-pyridine cpds. of formula (I), and Benzene (1-azo-5), 4-cyano-isothiazole (5-azo-5) and 2-(m)ethoxycarbonyl- 3-methyl- 4-cyano- thiophen (5-azo-5) 2(6)-amino- 6(2)-hydroxyalkoxyalkylamino or -acyloxyalkoxyalkylamino- 4-methyl- 3-cyano- pyridine cpds. of formula (II) are new. In the formulae, D = a substd. benzene, 3-cyano-thiophen, 4-cyano-isothiazole or substd. thiazole gp. of formulae (a-d); D1 = a substd. benzene, 4-cyano- isothiazole or 2-(m)ethoxycarbonyl -3-methyl-4-cyano -thiophen gp. of formulae (e-q); R1 = H, 1-4C alkyl, 1-4C alkoxy, 2-4C alkyl or 1-8C acyloxy-2-4C-alkyl; R2 = alkylene, opt. with O in the chain; T = the radical of a 1-8C aliphatic monocarboxylic acid; B1 = 1-4C alkyl or a phenyl or benzyl gp., opt. substd. by Me, MeO or Cl; B2 = B1, halogen, CN or 1-5C alkoxycarbonyl; X = H, NO2, CN, 1-9C-alkoxy- or -alkylaminocarbonyl, CF3 or (m)ethylsulphonyl; X2 = NO2 or 1-5C alkoxycarbonyl; X3 = X2, CN or formyl; Y = H, Cl, Br, Me, MeO or EtO; Z = H, Cl, Br, CN or 1-9C alkoxycarbonyl; at least one of X, Y and Z not = H; in (II), e.g. one of A1 and A2 = R3-OH or R3-OT1 and the other = H; R3 = C2H4OC2H4, (CH2)3O(CH2)3 or (CH2)3O(CH2)4; T1 = the radical of a 1-4C aliphatic monocarboxylic acid; X4 = NO2, CN or (m)ethylsulphonyl; Y2 = H, Cl or Br; Z2 = H, CN or 1-5C alkoxycarbonyl; B3 = 1-3C alkyl, benzyl or phenyl; R4 = Me or Et.

Patent Agency Ranking