Formation Of Sulfonamide Group Patents (Class 534/592)
  • Publication number: 20130130306
    Abstract: A colorimetric chemosensor molecule having a aza-macrocycle Zn (II)-complex (L.Zn) (Scheme 1, Formula 1A) which can recognize selectively and efficiently ATP (Adenosine triphosphate), a biologically significant triphosphate in aqueous medium at pH 7.4 is described. Since ATP is the source of energy in living organisms, L.Zn (Scheme 1, Formula 1A) can also be used as a staining agent in the living cells through binding to ATP, generated in situ during the metabolic process.
    Type: Application
    Filed: March 21, 2011
    Publication date: May 23, 2013
    Applicant: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Prasenjit Mahato, Amrita Ghosh, Sanjiv Kumar Mishra, Anupama Shrivastava, Sandhya Mishra, Amitava Das
  • Patent number: 6730780
    Abstract: An oil-soluble dye prepared by subjecting a water-soluble dye having at least one group selected from the group consisting of sulfonate group and carboxyl group in its molecule to amidation: a water-based ink comprising the oil-soluble dye: and a process for preparing an oil-soluble dye, comprising halogenating a water-soluble dye having at least one group selected from the group consisting of sulfonate group and carboxyl group in its molecule, and thereafter subjecting the resulting halogenated water-soluble dye to amidation. The Oil-soluble dye of the present invention can be suitably and favorably used for inks for inkjet recording, inks for ball-points pens, inks for markers, toners, paints such as lacquers, inks for felt pens, and the like.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: May 4, 2004
    Assignee: Kao Corporation
    Inventors: Shigemi Wakabayashi, Takehiro Tsutsumi, Kenji Kaida, Makoto Sakakibara
  • Patent number: 6225023
    Abstract: A sulfonamide compound of the formula (1): wherein X is a hydrogen atom, an alkyl or alkoxy group which may be substituted, or a halogen atom, Y Is an alkyl group having at least two fluorine atoms, and each of R1 and R2 which are independent of each other, is an alkyl group which may be substituted, or R1 may be bonded to X or R2 to form a ring.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: May 1, 2001
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yuko Okamoto, Yutaka Kurose, Shuichi Maeda, Yuki Suzuki
  • Patent number: 5750661
    Abstract: Dyes of the formula ##STR1## where the ring A may be benzofused and R.sup.1 -R.sup.6 have the meaning defined in the specification, with the proviso that at least one quaternizable or quaternary group is present in the molecule; use of said dyes for dyeing or printing polymeric material, and novel amides of J-acid.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: May 12, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrike Schloesser, Udo Mayer
  • Patent number: 5571898
    Abstract: There are described dyes of the formula ##STR1## where the ring A may be benzofused, R.sup.1 is substituted or unsubstituted C.sub.1 -C.sub.13 -alkyl, substituted or unsubstituted phenyl, C.sub.1 -C.sub.8 -alkanoyl, substituted or unsubstituted benzoyl, substituted C.sub.2 -C.sub.4 -alkanoyl, or substituted diaminotriazinyl,R.sup.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl or R.sup.1 and R.sup.2 together with the nitrogen atom joining them together are a heterocyclic radical,R.sup.3 and R.sup.4 are each substituted or unsubstituted C.sub.1 -C.sub.13 -alkyl, substituted or unsubstituted C.sub.5 -C.sub.7 -cycloalkyl or substituted or unsubstituted piperidinyl and R.sup.3 may also be hydrogen,R.sup.5 is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.2 -C.sub.5 -alkanoylamino, halogen, nitro, cyano, substituted or unsubstituted phenylazo, C.sub.2 -C.sub.4 -alkanoylamino substituted by a quaternizable or quaternary group, or C.sub.2 -C.sub.4 -alkoxy, C.sub.2 -C.sub.4 -alkoxycarbonyl or C.sub.2 -C.
    Type: Grant
    Filed: July 11, 1995
    Date of Patent: November 5, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulrike Schloesser, Udo Mayer
  • Patent number: 5502172
    Abstract: New pyrazole azo dyestuffs of the formula (I) ##STR1## in which R.sup.1 denotes hydrogen or an acyl radical,R.sup.2 denotes hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl, aryl or a heterocyclic radical which is optionally bonded via alkylene,R.sup.3 denotes hydrogen, halogen, alkyl or alkoxy,R.sup.4 denotes hydrogen, halogen, hydroxyl, amino, nitro, cyano, alkyl, alkoxy, acylamino, acyloxy or alkoxy-carbonyl,R.sup.5 and R.sup.6 independently of one another in each case denote hydrogen, alkyl, aralkyl or aryl orNR.sup.5 R.sup.6 together denotes a hydrogenated heterocyclic radical which is bonded via the nitrogen and optionally contains further hetero atoms,it being possible for all the alkyl, alkenyl, cycloalkyl, aralkyl, aryl, alkoxy and heterocyclic radicals present to be optionally substituted by nonionic substituents, a novel process for their preparation and their use for dyeing and printing materials.
    Type: Grant
    Filed: April 6, 1995
    Date of Patent: March 26, 1996
    Assignee: Bayer Aktiengesellschaft
    Inventors: Kerstin Pape, Horst Berneth
  • Patent number: 5446136
    Abstract: Pyrazole azo dyestuffs of the formula (I) ##STR1## in which R.sup.1 denotes hydrogen or an acyl radical,R.sup.2 denotes hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl, aryl or a heterocyclic radical which is optionally bonded via alkylene,R.sup.3 denotes hydrogen, halogen, alkyl or alkoxy,R.sup.4 denotes hydrogen, halogen, hydroxyl, amino, nitro, cyano, alkyl, alkoxy, acylamino, acyloxy or alkoxycarbonyl,R.sup.5 and R.sup.6 independently of one another in each case denote hydrogen, alkyl, aralkyl or aryl orNR.sup.5 R.sup.6 together denotes a hydrogenated heterocyclic radical which is bonded via the nitrogen and optionally contains further hetero atoms,it being possible for all the alkyl, alkenyl, cycloalkyl, aralkyl, aryl, alkoxy and heterocyclic radicals present to be optionally substituted by nonionic substituents, a novel process for their preparation and their use for dyeing and printing materials.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: August 29, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Kerstin Pape, Horst Berneth
  • Patent number: 4843149
    Abstract: A monoazo compound, or a salt thereof, represented by the formula, ##STR1## wherein D is a sulfophenyl group substituted with a methyl, ethyl, methoxy, ethoxy, phenoxy, acetylamino, pripionylamino, benzoylamino, carboxybenzoylamino, maleinylamino or succinylamino group, a naphthyl group substituted with two or three sulfo groups of a group of the formula ##STR2## any one of X.sub.1 or X.sub.2 is a sulfo group and the other is a methoxy or ethoxy group, Y is a fluorine or chlorine atom or an arylamino group substituted with one or two sulfo groups, R is a hydrogen atom or an unsubstituted or substituted lower alkyl group, A is an unsubstituted or substitued phenylene or naphthylene group, and Z is --SO.sub.2 CH.dbd.CH.sub.2 or --SO.sub.2 CH.sub..sub.2 CH.sub.2 Z.sub.1 in which Z.sub.1 is a group capable of being split by the action of an alkali, which is useful as a fiber-reactive dye for dyeing materials in a greenish yellow color excellent in various fastness properties.
    Type: Grant
    Filed: November 13, 1985
    Date of Patent: June 27, 1989
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Yutaka Kayane, Hirokazu Sawamoto, Takashi Omura, Naoki Harada, Akira Takeshita
  • Patent number: 4757137
    Abstract: Azo dyestuffs of the formula ##STR1## wherein R.sub.1 denotes acyl,R.sub.2 denotes hydrogen, fluorine, chlorine or trifluoromethyl,R.sub.3 denotes hydrogen, optionally substituted C.sub.1 -C.sub.4 -alkyl, cyclohexyl or optionally substituted phenyl andR.sub.4 denotes hydrogen or C.sub.1 -C.sub.4 -alkyl groupare suitable for dyeing natural and synthetic fibre materials, for example for dyeing wool or polyamide fibres, in level read to violet shades with very good fastnesses to light, wet processing and perspiration, the color yield being good.
    Type: Grant
    Filed: September 22, 1983
    Date of Patent: July 12, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Wolfrum, Erich Klauke, Hans-Gunter Otten
  • Patent number: 4628083
    Abstract: The invention relates to new arylazo compounds of the general formula ##STR1## wherein R.sub.1 and R.sub.2 independently of each other represent hydrogen or C.sub.1-3 alkyl, R.sub.3 represents hydrogen, halogen, C.sub.1-3 alkyl, C.sub.1-3 alkoxy, carboxy, C.sub.1-3 alkoxycarbonyl, C.sub.1-3 alkylcarbonyl or a group X--NH--SO.sub.2 --, wherein X represents a heterocyclic ring, R.sub.4 represents hydrogen, halogen or C.sub.1-3 alkyl, and n is the integer 1 or 2, the two groups ##STR2## being the same or different when n is 2, and lactones and salts thereof. The compounds of formula I have a high inhibiting effect on prostaglandin synthetizing and inactivating enzymes and may therefore be used as a drug and anti-fertility agent. The invention also relates to preparation of the compounds of formula I as well as pharmaceutical compositions containing the same.
    Type: Grant
    Filed: January 18, 1985
    Date of Patent: December 9, 1986
    Assignee: Pharmacia AB
    Inventor: Karl H. Agback
  • Patent number: 4605697
    Abstract: A nondiffusible sulfonamido compound which is alkali-cleavable upon oxidation to release a diffusible photographically useful material, said nondiffusible sulfonamido compound having the formula: ##STR1## wherein: (a) R.sup.1 is alkyl, aryl sulfamyl, carbamyl, carbonamido, carbonyl, carbonyloxy or sulfonamido;(b) R.sup.2 is alkyl having from 1 to 18 carbon atoms, aryl, or alkylphenyl having from 7 to 12 carbon atoms;(c) R.sup.3 and R.sup.4 are independently alkyl, or aryl, or R.sup.3 and R.sup.4, taken together, form a fused carbocyclic or heterocyclic ring;(d) NHSO.sub.2 PUG represents a sulfonamido group;(e) PUG represents a photographically useful group; and(f) at least one of R.sup.1, R.sup.2, R.sup.3, or R.sup.
    Type: Grant
    Filed: September 16, 1983
    Date of Patent: August 12, 1986
    Assignee: Eastman Kodak Company
    Inventors: Claude F. Gerbal, Thomas E. Gompf, Pierre D. Collet