The Ring Nitrogen Of The Six-membered Hetero Ring Is Pentavalent (e.g., Quaternary Pyridinium Salts, Etc.) Patents (Class 546/347)
  • Patent number: 5374732
    Abstract: A substituted N-fluoropyridiniumsulfonate of the formula: ##STR1## in which R.sup.1 is a hydrogen atom, a halogen atom or a C.sub.1 -C.sub.4 alkyl or haloalkyl group, and R.sup.2 is a C.sub.1 -C.sub.4 alkyl or haloalkyl group, which is an effective fluorinating agent.
    Type: Grant
    Filed: July 31, 1992
    Date of Patent: December 20, 1994
    Assignee: Daikin Industries, Ltd.
    Inventors: Teruo Umemoto, Ginjiro Tomizawa
  • Patent number: 5374734
    Abstract: The present invention relates to new left-handed or right-handed monohydrogentartrate crystalline structures having nonlinear quadratic effects and a wide transparency range extending from the visible to the near infrared, consisting of optionally substituted 2-amino-5-nitropyridinium cations in combination with a polyanionic organic matrix formed of left-handed or right-handed monohydrogentartrate anions.It also relates to a process for the preparation of these crystalline structures consisting in mixing one mole of cation base with at least two moles of left-handed and/or right-handed tartaric acid. It finally relates to a device having an electrooptical effect containing said crystalline structure.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: December 20, 1994
    Assignees: France Telecom, Centre National de la Recherche Scientifique (CNRS)
    Inventors: Joseph Zyss, Roland Hierle, Rene Masse, Jean-Pierre Levy
  • Patent number: 5360911
    Abstract: A novel process is disclosed for producing stilbazolium salts. Said novel process employs a heterocyclic amine catalyst, such as pyrrolidine, an alkylated pyridine salt and a substituted benzaldehyde which unexpectedly results in increased reaction rates and product yields.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: November 1, 1994
    Assignee: General Electric Company
    Inventors: Eugene P. Boden, Peter D. Phelps, Kevin R. Stewart
  • Patent number: 5349067
    Abstract: Provided is a convenient method for the synthesis of quaternary ammonium sulfonate compounds which are useful as curing catalysts for one-part thermosetting resin compositions which maintain storage stability at room temperature. The compounds are synthesized by subjecting in one step a benzyl alcohol optionally having on the benzene ring and/or the .alpha.-position one or more substituent groups to reaction with a corresponding tertiary amine and an organic sulfonic acid chloride.
    Type: Grant
    Filed: April 9, 1993
    Date of Patent: September 20, 1994
    Assignee: Nippon Paint Co., Ltd.
    Inventors: Shinji Nakano, Takao Morimoto, Takeshi Endo
  • Patent number: 5336775
    Abstract: A process for producing tertiary amine-sulphur trioxide complexes of the general formulaR.sub.3 N:SO.sub.3where R is a either methyl, ethyl, or propyl or the group R.sub.3 N is pyridyl comprising forming a reaction mixture of chlorosulfonic acid, pyridine or other tertiary amine R.sub.3 N, where R is previously defined and a chlorinated organic solvent. Gaseous ammonia is passed into the reaction mixture in order to recover amine from amine hydrochloride which is formed as a by-product of the reaction. Since the amine is more soluble in the chlorinated solvent than ammonium chloride that is co-produced, the reaction of the amine with chlorosulfonic acid to produce R.sub.3 N:SO.sub.3 is favored.
    Type: Grant
    Filed: March 24, 1992
    Date of Patent: August 9, 1994
    Assignee: Pfizer Inc.
    Inventors: Zeljko Guberovic, Marijan Hohnjec, Josip Kuftinec, Milan Oklobzija
  • Patent number: 5332827
    Abstract: Deuterated organic salts useful in nonlinear optical applications are disclosed herein. More particularly, optoelectronic devices and systems are prepared from said deuterated organic salts and the preferred salt is perdeuterated 4'-dimethylamino-4-methylstilbazolium p-toluenesulfonate.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: July 26, 1994
    Assignee: General Electric Company
    Inventors: Kevin R. Stewart, Eugene P. Boden, Christopher P. Yakymyshyn
  • Patent number: 5332824
    Abstract: The invention relates to a novel process and novel intermediates for the preparation of 2-amino-5-methylpyridine (I) ##STR1## The process is characterized in that in a first step 3-methyl-pyridine 1-oxide of the formula (II) ##STR2## is reacted with a trialkylamine of the general formula (III)R.sub.3 N (III)in whichR represents alkyl,and with an electrophilic compound, in the presence or absence of a diluent, to give the ammonium salt of the general formula (IV) ##STR3## in which R has the abovementioned meaning andZ.sup..crclbar. represents an anion formed from an electrophilic compound, the compound (IV)is, possibly, isolated as a crude intermediate and, possibly, further purified and then in a second step the ammonium salt of the formula (IV) is reacted with hydrogen bromide, in the presence or absence of a diluent, at temperatures between 150.degree. C. and 300.degree. C.The compound (I) is an intermediate for the preparation of agrochemicals, for example of herbicides.
    Type: Grant
    Filed: April 6, 1993
    Date of Patent: July 26, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Eric Rivadeneira, Klaus Jelich
  • Patent number: 5328921
    Abstract: The invention is aryl, amide, imide and carbamate pyridine antagonists of platelet activating factor.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: July 12, 1994
    Assignee: American Cyanamid Company
    Inventors: Michael P. Trova, Allan Wissner
  • Patent number: 5294721
    Abstract: A process for the preparation of halobenzoic acids, comprising the step of reacting a halonitrobenzene with a pyridinium salt to form an intermediate of the formula ##STR1## wherein R is selected from the group consisting of hydrogen, alkyl, aryl, alkenyl, alkynyl, --CN, --COOR' and --COR' where R' is alkyl or aryl; X is chloro or fluoro; Y is hydrogen, chloro or fluoro; and Z is chloro, bromo or iodo.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: March 15, 1994
    Assignee: Abbott Laboratories
    Inventors: Xiu C. Wang, Panos Kalaritis, Michelle L. Chang
  • Patent number: 5292888
    Abstract: Stilbazolium salts that retain high second harmonic generation properties as well as high melting points are disclosed herein. More particularly, novel 4'-dimethylamino-N-methylstilbazolium cyclopentanesulfonate and homologs thereof which are expected to be useful in optoelectric devices and systems are disclosed.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: March 8, 1994
    Assignee: General Electric Company
    Inventor: Kevin R. Stewart
  • Patent number: 5223644
    Abstract: Bicarbonates and/or carbonates are used in greater than catalytic amounts to inhibit the formation of nitrosamines during the preparation, storage and/or use of amine oxides.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: June 29, 1993
    Assignee: Albright & Wilson Limited
    Inventors: Michael Blezard, Glyn R. Jones
  • Patent number: 5208247
    Abstract: The invention is aryl, amide, imide and carbamate pyridine antagonists of platelet activating factor.
    Type: Grant
    Filed: August 1, 1991
    Date of Patent: May 4, 1993
    Assignee: American Cyanamid Company
    Inventors: Michael P. Trova, Allan Wissner
  • Patent number: 5208135
    Abstract: Compounds having a utility as photosensitive dyes in photocurable polymer based imaging systems having a nucleus of general formula (I): ##STR1## wherein: n is 1 or 2,Y is selected from the group consisting of 0 and ##STR2## Z is selected from the group consisting of 0.sup..crclbar. and ##STR3## M.sup..sym. is a cation.
    Type: Grant
    Filed: February 11, 1991
    Date of Patent: May 4, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Ranjan C. Patel, Tran V. Thien, David Warner
  • Patent number: 5183823
    Abstract: There is disclosed a novel thiazolidinedione derivative of the general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and are a hydrogen atom or a lower alkyl group, or a salt thereof. The thiazolidinedione derivative has hypoglycemic activity and hypolipidemic activity.
    Type: Grant
    Filed: March 31, 1992
    Date of Patent: February 2, 1993
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Takashi Sohda, Hitoshi Ikeda
  • Patent number: 5137923
    Abstract: Lipophilic quaternary ammonium salicylate, characterized in that it corresponds to the formula: ##STR1## in which: (i) R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which may be identical or different, denote an alkyl or alkylcycloalkyl radical, optionally substituted or interrupted;(ii) R.sub.3 and/or R.sub.4 denote(s) a group:R.sub.8 --OC.sub.2 H.sub.3 R.sub.7 ].sub.n [OCH.sub.2 CHOH--CH.sub.2 ].sub.pin which: 0.ltoreq.n.ltoreq.4 and p denotes 0 or 1; R.sub.8 denotes H or an alkyl, alkenyl, alkylcycloalkyl or alkylaryl radical;(iii) R.sub.4 denotes an alkylphenyl radical;(iv), (v) R.sub.1 and R.sub.2 can form a saturated or unsaturated aromatic or non-aromatic heterocycle;(vi) R.sub.1, R.sub.2 and R.sub.3 form polycyclic derivatives with the nitrogen atoms; R.sub.5 denotes a group corresponding to the formula: ##STR2## in which n is an integer varying between 0 and 10.
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: August 11, 1992
    Assignee: L'Oreal
    Inventors: Michel Philippe, Henri Sebag, Michel Hocquaux, Bernard Jacquet, Jean P. Laugier
  • Patent number: 5135825
    Abstract: There is disclosed a method for producing an ambient temperature molten salt comprising at least one of 1,3-dialkylimidazolium halide, 1,2,3-trialkylimidazolium halide and N-alkylpyridinium halide, and an aluminum halide, which comprises suspending the above starting materials in an inert solvent having a low boiling point to carry out a complex forming reaction.
    Type: Grant
    Filed: June 15, 1990
    Date of Patent: August 4, 1992
    Assignees: Mitsubishi Petrochemical Co., Ltd., Nisshin Steel Co., Ltd.
    Inventors: Shoichiro Mori, Kazuhiko Ida, Hitoshi Suzuki, Setsuko Takahashi, Isao Saeki
  • Patent number: 5128348
    Abstract: Certain hexane and heptane amines including geometric and stereoisomers, agricultural compositions containing them and their use as fungicides.
    Type: Grant
    Filed: September 12, 1990
    Date of Patent: July 7, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Gregory S. Basarab
  • Patent number: 5118674
    Abstract: The invention relates to 3-(N-methyl-N-alkyl)-amino 2-methoxymethylene propan 1-ol derivatives of the formula ##STR1## wherein R stands for an alkyl chain, A stands for: ##STR2## and Y represents various quaternary ammonia, to a preparation process of said compounds and to therapeutic compositions containing the same.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: June 2, 1992
    Assignee: Societe de Conseils de Recherches et d'Applications Scientifiques (S.C.R.A.S.)
    Inventors: Pierre Braquet, Colette Broquet, Benedicte Vandamme, Paola Principe-Nicolas
  • Patent number: 5081249
    Abstract: A class of N-fluoropyridinium-sulfonates is provided along with a processw for making same. Starting pyridine sulfonic acids and acid salts are fluorine substituted at the pyridine nitrogen atom with dilute gaseous fluorine under liquid phase contacting conditions. The N-fluorine substituted products are excellent fluorinating agents which exhibit high specificity.
    Type: Grant
    Filed: February 5, 1991
    Date of Patent: January 14, 1992
    Assignees: Sagami Chemical Research Center, Onoda Cement Company, Ltd.
    Inventor: Teruo Umemoto
  • Patent number: 5057518
    Abstract: The synthesis and application of N(1)-n-alkyl-pyrimidinium-salts are described. These surfactants have a very small critical micelle concentration (CMC) in the order of 10.sup.-5 -10.sup.-7 Mol/Liter. These N(1)-n-alkyl-pyrimidinium components have pharmacological activities and can act as antimetabolites.
    Type: Grant
    Filed: May 24, 1990
    Date of Patent: October 15, 1991
    Assignee: Medice Hem.-Pharm. Fabrik Putter GmbH & Co. KG
    Inventor: Henrich H. Paradies
  • Patent number: 5053537
    Abstract: Ammonium compounds of the formula (I) ##STR1## in which at least one of the radicals R.sub.1 to R.sub.4 denotes a fluorine-containing alkyl radical having 4 to 30 carbon atoms and not more than three of the radicals R.sub.1 to R.sub.4 independently of one another denote hydrogen atoms or alkyl or hydroxyalkyl radicals having 1 to 30 carbon atoms, and R.sub.5 to R.sub.8 denote aryl, alkylaryl or halogenoaryl radicals or fluorine atoms, and iminium compounds of the formula (II) ##STR2## in which Q, together with the constituent ##STR3## forms a ring system having 4 to 17 carbon atoms, which can be interrupted by 1 to 4 hetero atoms and contain 2 to 9 double bonds, and which can be substituted by fluorine, chlorine, bromine or iodine atoms or alkyl (C.sub.1 -C.sub.6), alkoxy (C.sub.1 -C.sub.6), nitro or amino groups, R.sub.9 denotes a fluorine-containing alkyl (C.sub.1 -C.sub.30) radical, R.sub.10 denotes a hydrogen, fluorine, chlorine, bromine or iodine atom or an alkyl(C.sub.1 -C.sub.6), alkoxy (C.sub.1 -C.
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: October 1, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Jorg Gitzel, Hans-Tobias Macholdt, Frank Wehowsky, Gunther Prossel
  • Patent number: 5013844
    Abstract: Photographic silver halide elements containing aryl hydrazides as defined for the production of images with ultrahigh contrast and a new class of aryl hydrazides with a cationic group in the aryl radical as defined. The photographic silver halide elements can be developed at relatively low pH values and have low fog and low tendency to form black spots in unexposed or slightly exposed areas.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: May 7, 1991
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Reinhold Ruger
  • Patent number: 5001156
    Abstract: Lipophilic quaternary ammonium salicylate, characterized in that it corresponds to the formula: ##STR1## in which: (i) R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which may be identical or different, denote an alkyl or alkylcycloalkyl radical, optionally substituted or interrupted;(ii) R.sub.3 and/or R.sub.4 denote(s) a group:R.sub.8 [OC.sub.2 H.sub.3 R.sub.7 ].sub.n [OCH.sub.2 CHOH--CH.sub.2 ].sub.pin which 0.ltoreq.n.ltoreq.4 and p denotes 0 or 1; R.sub.8 denotes H or an alkyl, alkenyl, alkylcycloalkyl or alkylaryl radical;(iii) R.sub.4 denotes an alkylphenyl radical;(iv), (v) R.sub.1 and R.sub.2 can form a saturated or unsaturated aromatic or non-aromatic heterocycle;(vi) R.sub.1, R.sub.2 and R.sub.3 form polycyclic derivatives with the nitrogen atoms; R.sub.5 denotes a group corresponding to the formula: ##STR2## in which n is an integer varying between 0 and 10.
    Type: Grant
    Filed: December 1, 1987
    Date of Patent: March 19, 1991
    Assignee: L'Oreal
    Inventors: Michel Philippe, Henri Sebag, Michel Hocquaux, Bernard Jacquet, Jean P. Laugier
  • Patent number: 4996320
    Abstract: A pyridine-compound is reacted with fluorine together with a Bronsted acid-compound or Lewis acid to form a N-fluoropyridinium salt which is very active to other compounds but is very selective for the preparation of a desired product and this product is very useful for a fluorine-introducing agent which makes it useful for the preparation of fluoro-compounds such as thyroid inhibitor.
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: February 26, 1991
    Assignee: Sagami Chemical Research Center
    Inventors: Teruo Umemoto, Kyoichi Tomita, Kosuke Kawada, Ginjiro Tomizawa
  • Patent number: 4970331
    Abstract: Vinyl ethers having a carboxyl group in a form of salt are stable and is usable as materials for fluorine-containing copolymers. The vinyl ethers can provide sable monomer compositions by mixing with vinyl ethers having a free carboxyl group when the former vinyl ethers are present in an amount of not less than 1% by mole of the latter vinyl ethers. The fluorine-containing copolymer prepared by copolymerizing fluoroolefins with the vinyl ethers are useful as aqueous coatings particularly electro dip coatings.
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: November 13, 1990
    Assignee: Daikin Industries, Ltd.
    Inventors: Tatsushiro Yoshimura, Nobuyuki Tomihashi, Tsutomu Terada, Masayuki Yamana, Kazuhiro Nakai, Takayuki Araki
  • Patent number: 4942260
    Abstract: Amine oxides which have low levels of nitrosamines or are substantially-free of nitrosamines are made by reacting tert-amines with hydrogen peroxide in the presence of carbon dioxide and aluminum metal.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: July 17, 1990
    Assignee: Ethyl Corporation
    Inventors: Kathleen S. Laurenzo, Joe D. Sauer
  • Patent number: 4889934
    Abstract: Novel organic mixed complexes are provided which have the general formulaD.sup.+.[A.TCNQ]wherein D.sup.+ is an N-alkylonium cation derived from a nitrogen-containing hetercyclic compound (D) selected from the group consisting of pyridines, guinolines, isoquinolines and imidazoles and [A.TCNQ] is an anion radical derived from a 2,5-bis[(alkoxycarbonyl)-ethyl]-7,7,8,8-tetracyanoquinodimethane (A) of the formula ##STR1## in which R is an alkyl group containing 1-10 carbon atoms, and 7,7,8,8-tetracyanoquinodimethane (TCNQ).
    Type: Grant
    Filed: January 26, 1988
    Date of Patent: December 26, 1989
    Assignee: Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takeo Kawabata, Masahiko Miyashita, Akira Taisha
  • Patent number: 4883880
    Abstract: Propane or butane sultones are prepared by the thermal decomposition of the corresponding aryl sulfoalkyl ethers wherein the alkyl part has three or four carbons between the sulfo group and the ether oxygen. When a tertiary amine is present, the final product is the corresponding sulfoalkyl quaternary salt of the tertiary amine.
    Type: Grant
    Filed: August 8, 1983
    Date of Patent: November 28, 1989
    Assignee: AGFA-Gevaert Aktiengessellschaft
    Inventors: Helmut Kampfer, Wolfgang Himmelmann
  • Patent number: 4874850
    Abstract: A pharmaceutical preparation is disclosed which is made up of a micelle or a vesicle each consisting of a cationic tenside with a monovalent ion and a hydrophobic cyclic or linear peptide, dispersed in a solvent whose pH value lies between pH 7-pH 8, the critical micellization concentration (cmc) lying in the range of 1.0 . 10.sup.-7 to 7.0 . 10.sup.-5 mol/liter. The preparation disclosed have in particular the advantage that by the increasing of the hydrophobicity of the alkyl or aryl chain or the radical at the N.sup.+ tenside both the membrane permeability is increased and furthermore the pharmaceutical active substance, in particular linear and cyclic tyrocidines (A-E), can be transferred actively into the cytosol. They thus act on the transcription level. In addition, linear and cyclic tyrocidines in particular have antiviral effects.
    Type: Grant
    Filed: August 6, 1987
    Date of Patent: October 17, 1989
    Assignee: Medice Chem.-Pharm. Fabrik Putter GmbH & Co.
    Inventor: Henrich H. Paradies
  • Patent number: 4870174
    Abstract: The synthesis of 7-n-alkyl-imidazolium[4,5-d]-pyrimidines, 6-substituted-3n-alkyl-benzimidazolium- and 3n-alkyl-5,6-substituted-benzthiazolium salts are described. There N.sup.+ -surfactants having a substituted heterocycle as a head group have distinguished small critical micelle concentrations (CMC) in the range of 10.sup.-5 -10.sup.-7 Mol/Liter. The size and shape of these micelles in watery solutions are determined by the nature of the anion. The N-surfactants can be used as pharmaceuticals as well as reporter groups in fluorescence studies including immunological assays.
    Type: Grant
    Filed: August 6, 1987
    Date of Patent: September 26, 1989
    Assignee: Medice chem.-pharm. Fabrik
    Inventor: Henrich H. Paradies
  • Patent number: 4865650
    Abstract: Composition of matter containing:(a) a compound of the formula I ##STR1## in which A is one of the groups of the formulae ##STR2## in which B is --O--, --S--, --SO.sub.2 --, --N.dbd.N--, --CH.sub.2 --, --CH.dbd.CH--, --O--CH.sub.2 --O-- ##STR3## --CONH--, --NHCONH-- or --CONHNHCO--, Q is --O' or --NH' and Z is --O-- or --S-- and R and R' are independently of each other hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or phenoxy, and (b) a compound of the formula II ##STR4## in which X.sup..sym. is H.sup..sym. or a group of the formulae ##EQU1## or N.sup..sym. (R.sub.1) (R.sub.2) (R.sub.3) (R.sub.4), M.sup.n.sym. is an n-valent metal cation, n is 1, 2 or 3, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently of one another hydrogen, C.sub.1 -C.sub.18 -alkyl, C.sub.5 -C.sub.6 -cycloalkyl, unsubstituted or C.sub.1 -C.sub.18 -alkyl-substituted phenyl or R.sub.3 and R.sub.4 together with the N atom form a pyrrolidine, imidazolidine, piperidine, piperazine or morpholine radical, or R.sub.
    Type: Grant
    Filed: December 16, 1987
    Date of Patent: September 12, 1989
    Assignee: Ciba-Geigy Corporation
    Inventors: Jost von der Crone, Bernhard Medinger, Philippe Bugnon
  • Patent number: 4849520
    Abstract: The invention relates to fusible, electrically conductive N-arylpyridinium-TCNQ complexes of the formula ##STR1## in which m is zero or an integer from 0 to 2 andR represents an optionally substituted aryl radical, and their use for preparing conductive coatings on substrates.
    Type: Grant
    Filed: August 11, 1987
    Date of Patent: July 18, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Kossmehl, Detlef Kabbeck-Kupijai, Friedrich Jonas
  • Patent number: 4844841
    Abstract: Compounds of formula ##STR1## wherein X is long-chain alkyloxy, long-chain alkylamino or long-chain dialkylamino,M is alkali metal, pyridinium or ammonium,Y is hydroxy or long-chain alkyloxy,which are especially useful in photometric and fluorimetric investigations of lipids and lipid-water interactions and of cationic biomolecules such as nicotine adenine dinucleotide.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: July 4, 1989
    Inventors: Ernst Koller, Otto S. Wolfbeis
  • Patent number: 4843163
    Abstract: 3-(2-Phenethyl)-1-carbamoyloxypyridinium halide is an intermediate for the preparation of the antihistamine azatadine.
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: June 27, 1989
    Assignee: SmithKline Beckman Corporation
    Inventors: Raymond E. Dagger, Linda A. Motyka
  • Patent number: 4837330
    Abstract: Sulfatobetaines are prepared by reacting an adduct of a base having a tertiary N atom and sulfur trioxide with an alkylene oxide in the presence of an alkylene carbonate as a solvent.
    Type: Grant
    Filed: March 15, 1988
    Date of Patent: June 6, 1989
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerold Braun, Chung-Ji Tschang, Christos Vamvakaris, Klaus Glaser
  • Patent number: 4837307
    Abstract: A 2,2'-bridged[1,1'-biphenyl]-3-ylmethyl compound of the following formula is an intermediate to insecticidal esters. ##STR1## wherein n is 1-4 and Y is a leaving group readily displaced by carboxylate anions.
    Type: Grant
    Filed: January 16, 1984
    Date of Patent: June 6, 1989
    Assignee: FMC Corporation
    Inventor: Ernest L. Plummer
  • Patent number: 4812564
    Abstract: Disclosed herein is a process for preparing a compound having the formula ##STR1## which comprises sulfonating a compound having the formula ##STR2## with a complex having the formula ##STR3## and cyclizing the resulting compound having the formula ##STR4## by treatment with a base.
    Type: Grant
    Filed: May 11, 1987
    Date of Patent: March 14, 1989
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: William A. Slusarchyk, Tamara Dejneka
  • Patent number: 4801713
    Abstract: Novel, highly electroconductive organic complexes are disclosed which have the general formulaD.sup.+.A.sup.-wherein the constituent D.sup.+ is an N-alkyl-onium cation (D.sup.+) derived from a nitrogen-containing heterocyclic compound (D) selected from the group consisting of pyridines, quinolines, isoquinolines and imidazoles and the constituent A.sup.- is the anion radical corresponding to a 2,5-disubstituted-7,7,8,8-tetracyanoquinodimethane (A) of the general formula ##STR1## wherein X is --COOR (R being an alkyl group containing 1-10 carbon atoms) or --CN.
    Type: Grant
    Filed: January 26, 1988
    Date of Patent: January 31, 1989
    Assignee: Nippon Gohsei Kagaku Kogyo Kabushiki Kaisha
    Inventors: Takeo Kawabata, Akira Taisha
  • Patent number: 4764217
    Abstract: Composition containing(a) an isoindoline pigment of the formula I ##STR1## and (b) a compound of the formula II ##STR2## Pigment mixtures of this kind, in particular when used in paints, are distinguished in particular by increased tinctorial strength and high lustre and especially by improved rheology.For the definition of the substituents and symbols R.sub.1, R.sub.2, R.sub.3, R.sub.4, Q, X, Y and Z, see claim 1.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: August 16, 1988
    Assignee: Ciba-Geigy Corporation
    Inventors: Jost von der Crone, Bernhard Medinger, Philippe Bugnon
  • Patent number: 4756845
    Abstract: A bleaching agent composition comprising a peroxide capable of releasing hydrogen peroxide in aqueous solution, in admixture with an activator for the peroxide selected from the group consisting of naphthonitriles, isophthalonitrides, terephthalonitriles, alkali metal salts of cyanic acid, cyanic acid ammonium salt, cyanopyridines and acid neutralized products thereof, cyanopyridinium salts, O-acyl compounds, and N-acyl compounds has improved bleaching power and enables bleaching of an article within a short period of time.
    Type: Grant
    Filed: May 28, 1986
    Date of Patent: July 12, 1988
    Assignee: Lion Corporation
    Inventors: Hiroshi Sugawara, Yoji Toma, Takahiro Takabe, Kenji Yokoi
  • Patent number: 4721794
    Abstract: Thiophene-2-sulfonamides with a 5-alkyl-S(O).sub.n -substituent are carbonic anhydrase inhibitors useful in the treatment of elevated intraocular pressure.
    Type: Grant
    Filed: July 30, 1986
    Date of Patent: January 26, 1988
    Assignee: Merck & Co., Inc.
    Inventors: Kenneth L. Shepard, Samuel L. Graham
  • Patent number: 4705860
    Abstract: Quaternary ammonium salts of the formulaR.sub.1 --K.sup..sym. A.sup..crclbar.in whichR.sub.1 denotes C.sub.12 -C.sub.26 -alkyl or C.sub.12 -C.sub.26 -alkenyl,K.sup..sym. denotes a group of the formula ##STR1## or --.sup..sym. N(R.sub.2).sub.3, R.sub.2 denotes C.sub.1 -C.sub.3 -alkyl, preferably methyl, and A.sup..crclbar. denotes an anion of one of the following formulae: R.sub.3 SO.sub.3.sup..crclbar., in which R.sub.3 is C.sub.6 -C.sub.9 -alkyl or alkenyl and the sum of C atoms in R.sub.1 and R.sub.3 should be at least 21; ##STR2## in which Hal is fluorine, chlorine, bromine or iodine, R.sub.4 is C.sub.1 -C.sub.5 -alkyl, C.sub.2 -C.sub.5 -alkenyl or C.sub.1 -C.sub.5 -alkoxy in positions 3, 4, 5 or 6, R.sub.5 is hydrogen or hydroxyl in positions 2 or 3, R.sub.6 is COO.sup.- or SO.sub.3.sup.- and R.sub.7 is hydrogen or methyl, with the exception of the salicylate and m-halogenobenzoate ions when combined with C.sub.16 -alkylpyridinium and C.sub.16 -alkyltrimethylammonium.
    Type: Grant
    Filed: March 11, 1986
    Date of Patent: November 10, 1987
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Dieter Ohlendorf, Heinz Hoffmann, Werner Interthal, Ulrich Pintschovius
  • Patent number: 4694083
    Abstract: Disclosed herein is a process for preparing a compound having the formula ##STR1## which comprises sulfonating a compound having the formula ##STR2## with a complex having the formula ##STR3## and cyclizing the resulting compound having the formula ##STR4## by treatment with a base.
    Type: Grant
    Filed: April 28, 1986
    Date of Patent: September 15, 1987
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: William A. Slusarchyk, Tamara Dejneka
  • Patent number: 4675328
    Abstract: Polycyclic salts of the formulaA-XN+CH.sub.2 --(Y).sub.n --(CH.sub.2).sub.p --(Z).sub.q --L--(T).sub.r --M IwhereinA.sup.- is the anion of a strong organic or inorganic acid;XN.sup.+ is pyridinium, pyrimidinium, thiazolium or imidazolium substituted by R.sup.1, R.sup.2 and R.sup.3 ;n, q and r individually are the integer 1 or 0 and p is an integer from 1 to 15;Y is CH.sub.2, C(H,OH) or C(O):Z is O, S, CH.sub.2, C(O), NQ.sup.1, SO.sub.2, C(O)O, OC(O), C(O)N(Q.sup.1) or N(Q.sup.1)C(O);L is p-phenylene substituted by R.sup.4 ; andM is phenyl substituted by R.sup.5 and R.sup.6,T has one of the meanings given above, for Z or is C(CH.sub.3).sub.2, C.sub.2 H.sub.4, C(Q.sup.2).dbd.C(Q.sup.3), C.tbd.C, CH.sub.2 C(O), C(O)CH.sub.2, CH.sub.2 O or OCH.sub.2,R.sup.1 is a group Ar, Ar-C.sub.1-4 -alkyl, ArO or ArC(O),Ar is phenyl substituted by R.sup.7, R.sup.8 and R.sup.9 ;R.sup.2 and R.sup.3 individually are H, C.sub.1-4 -alkyl, C.sub.1-4 -alkoxy or C.sub.6 H.sub.
    Type: Grant
    Filed: January 15, 1986
    Date of Patent: June 23, 1987
    Assignee: Hoffmann-LaRoche Inc.
    Inventors: Jean-Marie Cassal, Albrecht Edenhofer, Henri Ramuz
  • Patent number: 4672118
    Abstract: Corrosion of metal surfaces in contact with an aqueous medium is inhibited by incorporating a N-(hydrophobe aromatic)pyridinium compound such as N-(p-dodecylphenyl)-2,4,6-trimethylpyridinium sulfoacetate into the aqueous medium.
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: June 9, 1987
    Assignee: The Dow Chemical Company
    Inventors: Thomas E. Fisk, Christopher J. Tucker
  • Patent number: 4668792
    Abstract: Substituted [1,1'-biphenyl]-3-ylmethyl compounds carrying leaving groups are intermediates to insecticidal esters.
    Type: Grant
    Filed: December 20, 1983
    Date of Patent: May 26, 1987
    Assignee: FMC Corporation
    Inventor: Ernest L. Plummer
  • Patent number: 4656200
    Abstract: The invention provides salts of methyl phosphonic acid and its mono- or di-methyl ester with certain amines. The salts are useful flame retardant additives for polyurethanes and polyisocyanurates.
    Type: Grant
    Filed: January 14, 1985
    Date of Patent: April 7, 1987
    Assignee: Ciba-Geigy AG
    Inventors: Brian G. Clubley, Richard J. Dellar, David L. Buszard, Norman Richardson
  • Patent number: 4620008
    Abstract: Novel compounds of the formula ##STR1## wherein R is H or CH.sub.3, a process for their preparation, and their use as intermediates in the preparation of pharmaceutically useful compounds, e.g. substituted benzimidazoles containing a pyridine radical, i.a. omeprazole.
    Type: Grant
    Filed: February 1, 1985
    Date of Patent: October 28, 1986
    Assignee: Aktiebolaget Hassle
    Inventors: Arne E. Brandstrom, Bo R. Lamm
  • Patent number: 4596874
    Abstract: A nitrone is synthesized from a secondary amine by reacting a compound represented by the following general formula ##STR1## wherein R.sup.1 and R.sup.2 mean individually a hydrogen atom or an alkyl or aryl group and R.sup.3 denotes an alkyl or aryl group with a peroxide in the presence of a catalyst selected from the group consisting of tungsten compounds, molybdenum compounds, vanadium compounds, titanium compounds, palladium compounds, rhodium compounds, ruthenium compounds and nickel compounds. This process provides the nitrone by one-step oxidation of the secondary amine.
    Type: Grant
    Filed: March 8, 1984
    Date of Patent: June 24, 1986
    Assignee: The President of Osaka University
    Inventors: Shun-Ichi Murahashi, Hitoshi Mitsui
  • Patent number: H751
    Abstract: A method for inhibiting acid corrosion of metal well equipment which comprises introducing into an aqueous acid solution an inhibiting amount of a quaternary compound prepared by reacting a tertiary aromatic heterocyclic amine with a (halo-substituted-aryl) alkyl halide, and contacting the well equipment with the inhibited aqueous acid solution.
    Type: Grant
    Filed: June 10, 1988
    Date of Patent: March 6, 1990
    Inventors: Daniel S. Sullivan, Stanley J. Brois, Robert C. Portnoy