Patents Examined by M. C.
  • Conversion of alkane and/or cycloalkane thiols to disulfide with catalyst system comprised of cobalt molybdate and an alkali- or alkaline earth metal hydroxide
    Patent number: 4277623
    Abstract: An alkane and/or cycloalkane thiol is converted to disulfide with oxygen or air in presence of a catalyst system comprising a cobalt molybdate-alkali metal- and/or an alkaline earth metal hydroxide. A solvent, e.g., an alcohol or an alcohol-water mixture is employed. In one embodiment, 2-methyl-2-propane thiol (tertiary-butyl mercaptan) is converted.
    Type: Grant
    Filed: August 17, 1979
    Date of Patent: July 7, 1981
    Assignee: Phillips Petroleum Company
    Inventor: Donald H. Kubicek
  • Process for the preparation of 2,2'-bisphenol sulfoxides
    Patent number: 4275240
    Abstract: 2,2'-Bisphenol sulfoxides are prepared by oxidizing 2,2'-bisphenol sulfides with hydrogen peroxide in the presence of such an organic solvent as not to form any organic peracids under reaction conditions.
    Type: Grant
    Filed: March 3, 1980
    Date of Patent: June 23, 1981
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Akihiro Yamaguchi, Keizaburo Yamaguchi, Hisamichi Murakami, Tadashi Kobayashi
  • Polyol (allyl carbonate) synthesis utilizing solid alkali metal hydroxide
    Patent number: 4273726
    Abstract: Disclosed is a method of synthesizing a polyol (allyl carbonate) by the alkali metal hydroxide catalyzed reaction of allyl alcohol and a polyol chloroformate where a portion of the alkali metal hydroxide is anhydrous.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: June 16, 1981
    Assignee: PPG Industries, Inc.
    Inventor: Senol Altuglu
  • Antihypertensive tricyclic isoindole derivatives
    Patent number: 4273773
    Abstract: Tricyclic isoindole derivatives characterized by having a 1,2,3,4,6,10b-hexahydropyrazino[2,1-a]isoindole or 1,3,4,10b-tetrahydropyrimido[6,1-a]isoindol-6(2H)-one nucleus are disclosed. The foregoing compounds are useful antihypertensive agents.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: June 16, 1981
    Assignee: American Home Products Corporation
    Inventors: Christopher A. Demerson, Leslie G. Humber, Jean-Marie Ferland
  • N-Alkyl or alkoxy-N'-substituted hydrocarbyl urea
    Patent number: 4273572
    Abstract: Compounds of the formula ##STR1## wherein R is aliphatic hydrocarbyl, alicyclic hydrocarbyl or aryl suitably substituted, if desired, or a heterocyclic group, R.sup.1 is hydrogen or alkyl, R.sup.2 is alkyl or alkoxy, R.sup.3 is ##STR2## wherein a is 0 or 1, R.sup.4 is hydrogen or CW'.sub.3, the W' being hydrogen or halogen, Z is halogen and X is halogen, hydroxy, alkoxy, acetoxy, carbethoxyalkoxy, phenoxy, alkylthio, carbethoxyalkylthio, phenylthio, phosphono, dithiophosphonoxy, phosphoramido, isocyanato, isothiocyanato, alkyl- and dialkylthiocarbamoylthio, alkyl- and dialkylcarbamoyloxy, alkylsulfonyl, etc., have herbicidal activity.
    Type: Grant
    Filed: August 20, 1979
    Date of Patent: June 16, 1981
    Assignee: Chevron Research Company
    Inventor: Malcolm S. Singer
  • Method for making aromatic ether imides
    Patent number: 4273712
    Abstract: A method for making aromatic ether imides is provided by effecting the displacement of reactive radicals on a phthalimide nucleus with a mono- or bis-alkali metal phenoxide in the presence of a nonpolar solvent and a phase transfer catalyst, such as a tetra-ammonia salt. The aromatic ether imides made by the present invention are useful intermediates for making aromatic ether anhydrides and aromatic bis(ether anhydrides).
    Type: Grant
    Filed: May 9, 1979
    Date of Patent: June 16, 1981
    Assignee: General Electric Company
    Inventor: Frank J. Williams, III
  • Arylthioureidoisoindolines and use as plant growth regulators
    Patent number: 4272284
    Abstract: A novel class of compounds which are useful as plant growth regulators has the general structural formula ##STR1## in which R is H or CH.sub.3, R' is halogen, trifluoromethyl, cyano or C.sub.1 to C.sub.3 alkyl or alkoxy and n is zero or an integer from 1 to 2.The compounds are synthesized by reacting a compound of the formula ##STR2## with an isocyanate of the formula ##STR3## under basic conditions in a non-reactive, polar organic solvent.
    Type: Grant
    Filed: March 13, 1980
    Date of Patent: June 9, 1981
    Assignee: Gulf Oil Corporation
    Inventor: Charles G. Gibbs
  • (3-Nitro-4-methyl)-phenyl chloroformate and its preparation
    Patent number: 4272450
    Abstract: The novel compound (3-nitro-4-methyl)-phenyl chloroformate is prepared by reacting (4-methyl)-phenyl chloroformate with nitric acid in the presence of sulfuric acid.The novel compound (3-nitro-4-methyl)-phenyl chloroformate is a valuable starting material for the preparation of dyes and crop protection agents and in particular is an intermediate for the preparation of 3-nitro-4-methylphenol, which is reduced to 3-amino-4-methylphenol.
    Type: Grant
    Filed: April 28, 1980
    Date of Patent: June 9, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Horst Scheuermann, Dieter Schneider
  • Silanes containing imide groups
    Patent number: 4271074
    Abstract: The compounds according to the invention have the formula I ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 are monovalent organic radicals or chlorine and Z is a tetravalent organic radical and A is a divalent organic grouping. These products are to be used as adhesion promoters, especially between inorganic solids and organic resins. 4 processes of preparation are given.
    Type: Grant
    Filed: August 20, 1979
    Date of Patent: June 2, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Dieter Lohmann, Siegfried Wyler
  • Novel 2-bromoethyl tellurium bromides
    Patent number: 4271090
    Abstract: The novel bis (2-bromoethyl) tellurium dibromide and 2-bromoethyl tellurium tribromide are prepared by reacting ethylene with a source of tellurium tetrabromide in an inert, non-basic organic solvent under certain temperature conditions and in the substantial absence of molecular oxygen.
    Type: Grant
    Filed: October 29, 1979
    Date of Patent: June 2, 1981
    Assignee: Halcon Research and Development Corp.
    Inventors: Anthony N. Naglieri, Nabil Rizkalla
  • Hydroquinone derivatives and preparation thereof
    Patent number: 4270003
    Abstract: The novel hydroquinone derivatives of the formula (I) are useful intermediates for the preparation of coenzyme Q, vitamin K and the polyprenyltrimethylquinones: ##STR1## wherein R.sup.1 is lower alkyl, lower alkoxy lower alkyl or methoxyethoxymethyl, R.sup.2 and R.sup.3 are each methyl or methoxy, or R.sup.2 and R.sup.3, taken together with the carbon atoms from which they depend, define a benzene ring, and R.sup.4 is a substituted or unsubstituted aromatic hydrocarbon. The compounds (I) are readily prepared either by reacting a Grignard reagent of the formula (II) with a halosulfone (III) in the presence of a copper compound, or by reacting a copper derivative (II') of the Grignard reagent (II) with a halo-sulfone (III), as follows: ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are defined as above, and X is a halogen atom or a tosyl group.
    Type: Grant
    Filed: July 30, 1979
    Date of Patent: May 26, 1981
    Assignee: Kuraray Co., Ltd.
    Inventors: Yoshiji Fujita, Takashi Ohnishi, Takashi Nishida
  • N-(Phenylcycloalkyl)acetamide derivatives, and their production and use
    Patent number: 4270002
    Abstract: A compound of the formula: ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, are each a C.sub.1 -C.sub.3 alkyl group, a chloromethyl group or a halogen atom, R.sub.3 is a hydrogen atom, a methyl group or a halogen atom, n is an integer of 2 to 5 and X is a hydrogen atom, a methyl group, a methoxy group or a chlorine atom, which is useful as a herbicide.
    Type: Grant
    Filed: October 23, 1979
    Date of Patent: May 26, 1981
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Osamu Kirino, Shunichi Hashimoto, Hiroshi Matsumoto, Hiromichi Oshio
  • Physiological preparation containing loaded cells in suspension and a magnetic agent for local concentration thereof in a living body
    Patent number: 4269826
    Abstract: Magnetic substances in particles of a diameter in the range between 1 and 20 nm are suspended in the physiological solution by which cells are loaded with materials when their cell membranes have increased permeability, the magnetic materials being provided in such dosing, that when the cells are loaded, separated from the loading solution and prepared for use in a fresh physiological solution, thereafter injected to a living body, they can be collected and held fast at a predetermined location, for example, at the location of a tumor, by the effect of an external magnetic field. Ferritin, magnetite, cobalt ferrite, nickel ferrite and other ferrimagnetic, ferromagnetic or even paramagnetic compounds can be incorporated into loaded cells for this purpose.
    Type: Grant
    Filed: December 12, 1977
    Date of Patent: May 26, 1981
    Assignee: Kernforschungsanlage Julich Gesellschaft mit beschrankter Haftung
    Inventors: Ulrich Zimmermann, Gunter Pilwat
  • Adenosine deaminase resistant antiviral purine nucleosides and method of preparation
    Patent number: 4268672
    Abstract: The preparation of (.+-.)-9-[.alpha.-(2.alpha.,3.beta.-dihydroxy-4.alpha.-(hydroxymethyl)cycl opentyl)]-6-substituted purines: ##STR1## and (.+-.)-3-[.alpha.-(2.alpha.,3.beta.-dihydroxy-4.alpha.-(hydroxymethyl)cycl opentyl)]-7-substituted-v-triazolo[4,5d]pyrimidines: ##STR2## and their derivatives wherein R is amino, mercapto, methylmercapto, hydroxy, halogen, or substituted amino: ##STR3## wherein R' and R" may be the same or different and are of hydrogen, methyl, ethyl, propyl or phenyl. The preparation of the single intermediate from which either of these series of compounds may be synthesized is also disclosed. The compounds exhibit antiviral and antitumor activity. Acid salts and esters of the purine nucleosides have also been prepared.
    Type: Grant
    Filed: January 5, 1979
    Date of Patent: May 19, 1981
    Assignee: The Regents of the University of Minnesota
    Inventor: Robert Vince
  • 4-(Arylaliphatic)isoxazoles
    Patent number: 4268678
    Abstract: 4-(Arylaliphatic)isoxazoles, having antiviral activity, are prepared by reacting with hydroxylamine a diketone of the formula Ar-Y-CH(CO-R).sub.2, wherein Ar is substituted phenyl, Y is (CH.sub.2).sub.n or O(CH.sub.2).sub.n, and R is lower-alkyl.
    Type: Grant
    Filed: September 4, 1979
    Date of Patent: May 19, 1981
    Assignee: Sterling Drug Inc.
    Inventors: Guy D. Diana, Philip M. Carabateas
  • Preparation of thioethers
    Patent number: 4267375
    Abstract: Thioethers may be prepared by reacting a thiol, such as thiophenol, with an alcohol (having electron donor groups in the alpha or beta position to its hydroxyl group) such as phenyl-1-hydroxy-phenethylsulfide. Reaction is carried out in the presence of a Lewis Acid metal halide, typically zinc chloride.
    Type: Grant
    Filed: September 25, 1978
    Date of Patent: May 12, 1981
    Assignee: s.a. Texaco Belgium n.v.
    Inventors: Alfred G. Maasbol, Lothar G. Dulog
  • Polyester polycarbonates
    Patent number: 4267120
    Abstract: Covers polyester polycarbonates of the structure: ##STR1## wherein X and Y, independently, are H, methyl, or ethyl, m and n independently are integers of 1-5, R is a nucleus of a glycol selected from the group of lower alkylene glycols and polyalkylene glycols of up to about 600 molecular weight, Z is an organic radical from a cyclic organic acid anhydride having 4-20 carbon atoms, and r is an integer of 1-5.Also covers a method of preparing said polyester polycarbonates as well as polyurethanes derived therefrom, as well as polyisocyanurate polymers containing both isocyanurate linkages and urethane linkages.
    Type: Grant
    Filed: December 14, 1979
    Date of Patent: May 12, 1981
    Assignee: Texaco Development Corp.
    Inventors: Michael Cuscurida, George P. Speranza
  • Perfluoroalkylthioethyl ether derivatives
    Patent number: 4266080
    Abstract: Perfluoroalkyl compounds containing ether groups have the formulaR.sub.f R.sub.1 SCH.sub.2 CH.sub.2 O T Zwherein R.sub.f is a perfluoroalkyl, R.sub.1 is alkylene or alkyleneoxy or aminoalkylene, T is alkylene, and Z is hydrogen; hydroxy; NR.sub.3 R.sub.4, where R.sub.3 and R.sub.4 each is alkyl or together with nitrogen form a heterocyclic ring; N.sup.+ R.sub.3 R.sub.4 (R.sub.5)X.sub.z.sup.-y, where R.sub.5 is hydrogen, oxide, alkyl, or substituted alkyl, X is an anion, and y is 1 or 2; z is 0 or 1 or is --OCH.sub.2 CH.sub.2 SR.sub.1 R.sub.f ; can be prepared directly by free-radical catalyzed addition of a perfluoroalkylthiol to a vinyl ether or subsequent reaction. These compounds are useful as surfactants and oil spill collecting agents.
    Type: Grant
    Filed: February 2, 1978
    Date of Patent: May 5, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Robert A. Falk, Karl F. Mueller
  • Process for the preparation of 2,4,5-trichloropyrimidine
    Patent number: 4266059
    Abstract: 2,4,5-Trichloropyrimidine is obtained by reacting 2-cyanoethyl isocyanide dichloride with hydrogen chloride and then reacting the product with chlorine.
    Type: Grant
    Filed: November 30, 1979
    Date of Patent: May 5, 1981
    Assignee: Bayer Aktiengesellschaft
    Inventors: Fritz Doring, Gunther Beck, Gerhard Dankert
  • N-(arylthiocarbamoyl)-2-amino-1H-isoindole-1,3-(2H)diones and use as plant growth regulators
    Patent number: 4264502
    Abstract: A novel class of compounds which are useful as plant growth regulators is disclosed, having the general structural formula: ##STR1## in which R.sup.1 is; C.sub.1 to C.sub.4 alkyl, nitro or halo and n is zero or an integer from 1 to 4R.sup.2 and R.sup.3 are; H or C.sub.1 to C.sub.4 alkyl or hydroxyalkyl, or benzyl andAr is; adamantyl, C.sub.3 to C.sub.4 alkyl or alkenyl, benzyl, halobenzyl, naphthyl, phenyl or phenyl bearing thereon from one to three of the substituents: cyano, benzyloxy, methylenedioxy, nitro, bromo, chloro, trifluoromethyl and C.sub.1 to C.sub.4 alkyl, alkenyl, alkoxy, alkylthio and alkyl-substituted amino.
    Type: Grant
    Filed: February 5, 1980
    Date of Patent: April 28, 1981
    Assignee: Gulf Oil Corporation
    Inventors: Natu R. Patel, Jerry L. Rutter