Thioethers Patents (Class 568/38)
  • Patent number: 4694106
    Abstract: Described are methylthioionene derivatives defined according to the structure: ##STR1## wherein n is 0 or 1; wherein the dashed lines each represent a carbon-carbon single bond or a carbon-carbon double bond with the proviso that when the dashed line at the 3'-4' position is a double bond, n represents 0 and uses thereof in augmenting or enhancing the aroma or taste of foodstuffs.
    Type: Grant
    Filed: March 7, 1986
    Date of Patent: September 15, 1987
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Ranya Muralidhara, Manfred H. Vock, Kevin P. Miller, Domenick Luccarelli, Jr.
  • Patent number: 4658067
    Abstract: Described are dialkylthioalkenes, dialkylthioalkylcycloalkenes and monoalkylthioalkenylcycloalkenes defined according to the generic structure: ##STR1## as well as the genus defined according to the structure: ##STR2## wherein R represents C.sub.6 -C.sub.11 alkenyl or cycloalkenylalkyl; and wherein R.sub.2 represents C.sub.1 -C.sub.3 alkyl and R.sub.3 is C.sub.1 -C.sub.3 alkyl and organoleptic uses thereof in augmenting or enhancing the aroma or taste of foodstuffs, chewing gums, toothpastes or medicinal products.
    Type: Grant
    Filed: November 21, 1985
    Date of Patent: April 14, 1987
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Ranya Muralidhara, Kevin P. Miller, Domenick Luccarelli, Jr., Manfred H. Vock
  • Patent number: 4621098
    Abstract: The present invention provides thioethers of the general formula: ##STR1## wherein Ar is a phenyl radical which is optionally substituted one, two or three times by alkyl, alkenyl, alkoxy, alkylthio, alkanoyl, hydroxyl, hydroxyalkyl, carboxyl, alkoxycarbonyl, carbamoyl, nitro, amino or halogen, Q is an oxygen or sulphur atom or an NH group, A is a straight-chained or branched C.sub.2 -C.sub.8 alkylene radical which is optionally substituted by a hydroxyl group or can be interrupted by an ethenylene or ethynylene group, n is 0, 1 or 2, and R is a hydrogen atom or a straight-chained or branched alkyl radical which is optionally substituted one or more times by the same or different radicals selected from alkoxycarbonyl, alkoxy, hydroxyl, carboxyl or optionally substituted carbamoyl or amino; as well as the pharmacologically acceptable salts thereof, with the proviso that A cannot be ethylene when Ar is a phenyl radical, Q is an oxygen atom and R is the group --CH.sub.2 COOH.
    Type: Grant
    Filed: July 2, 1984
    Date of Patent: November 4, 1986
    Assignee: Boehringer Mannheim GmbH
    Inventors: Robert Umminger, Walter-Gunar Friebe, Wolfgang Kampe, Androniki Roesch, Otto-Henning Wilhelms
  • Patent number: 4618722
    Abstract: A process for preparing dihydrocarbyl sulfides comprises the step of simultaneously contacting (a) a dialkyl sulfoxide, preferably dimethyl sulfoxide, with (b) a hydrocarbyl halide, particularly an alkyl or alkenyl bromide, and (c) a metal carboxylate, preferably an alkali metal acetate, under such conditions as will produce at least one alkyl hydrocarbyl sulfide or alkenyl hydrocarbyl sulfide.
    Type: Grant
    Filed: June 10, 1985
    Date of Patent: October 21, 1986
    Assignee: Phillips Petroleum Company
    Inventor: Charles A. Drake
  • Patent number: 4613511
    Abstract: Described are dialkylthioalkenes, dialkylthioalkylcycloalkenes and monoalkylthioalkenylcycloalkenes defined according to the generic structure: ##STR1## as well as the genus defined according to the structure: ##STR2## wherein R represents C.sub.6 -C.sub.11 alkenyl or cycloalkenylalkyl; and wherein R.sub.2 represents C.sub.1 -C.sub.3 alkyl and R.sub.3 is C.sub.1 -C.sub.3 alkyl and organoleptic uses thereof in augmenting or enhancing the aroma or taste of foodstuffs, chewing gums, toothpastes or medicinal products.
    Type: Grant
    Filed: November 21, 1985
    Date of Patent: September 23, 1986
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Ranya Muralidhara, Kevin P. Miller, Domenick Luccarelli, Jr., Manfred H. Vock
  • Patent number: 4609762
    Abstract: Liquid polythioethers containing no oxygen in the polymeric backbone and a method for producing same which includes condensing an organic compound having primary mercaptan group with an organic compound having secondary hydroxyl group beta to a sulfur atom.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: September 2, 1986
    Assignee: Products Research & Chemical Corp.
    Inventors: Lester Morris, Hakam Singh, Jonathan D. Zook
  • Patent number: 4608433
    Abstract: Disclosed herein are inert monovalent hydrocarbon terminated polysulfide copolymers having the general structure ##STR1## wherein n is an integer from about 2 to about 8, l is zero or a positive integer, m is a positive integer, each R is independently an organic polyradical with the radicals residing on carbon atoms, p is zero or a positive integer which is the difference between the number of radicals on R and 2, and each Y is a terminal substituent that is an inert monovalent hydrocarbon radical.
    Type: Grant
    Filed: July 24, 1985
    Date of Patent: August 26, 1986
    Assignee: The Dow Chemical Company
    Inventors: Victor E. Meyer, Thomas E. Dergazarian
  • Patent number: 4599237
    Abstract: Described are methylthioionene derivatives defined according to the structure: ##STR1## wherein n is 0 or 1; wherein the dashed lines each represent a carbon-carbon single bond or a carbon-carbon double bond with the proviso that when the dashed line at the 3'-4' position is a double bond, n represents 0 and uses thereof in augmenting or enhancing the aroma or taste of foodstuffs.
    Type: Grant
    Filed: August 23, 1985
    Date of Patent: July 8, 1986
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Alan O. Pittet, Ranya Muralidhara, Manfred H. Vock, Kevin P. Miller, Domenick Luccarelli, Jr.
  • Patent number: 4568782
    Abstract: Disclosed is the vapor phase cyclodehydration of an aldehyde or ketone over a solid Lewis acid as catalyst to make indene or a substituted indene according to the equation: ##STR1##
    Type: Grant
    Filed: June 17, 1985
    Date of Patent: February 4, 1986
    Assignee: The Standard Oil Company
    Inventors: Marco Pagnotta, Mark C. Cesa, James D. Burrington
  • Patent number: 4551259
    Abstract: Reaction products obtained by reacting certain hindered phenols with selected thiaalkene provide antioxidant properties when added to lubricants.
    Type: Grant
    Filed: December 14, 1983
    Date of Patent: November 5, 1985
    Assignee: Mobil Oil Corporation
    Inventor: Milton Braid, deceased
  • Patent number: 4537994
    Abstract: Interchange reactions between organosulfides and mercaptans are promoted by the use of catalysts containing tungsten and molybdenum oxide.
    Type: Grant
    Filed: October 18, 1983
    Date of Patent: August 27, 1985
    Assignee: Phillips Petroleum Company
    Inventor: John S. Roberts
  • Patent number: 4507492
    Abstract: Allyl derivatives of phenols, thiophenols and arylamines are prepared by contacting such aromatic reactant with an allyl lower alkyl carbonate in the presence of a molybdenum, tungsten or Group VIII metal.
    Type: Grant
    Filed: May 6, 1983
    Date of Patent: March 26, 1985
    Assignee: The Dow Chemical Company
    Inventor: Edmund P. Woo
  • Patent number: 4507493
    Abstract: The present invention provides a process for the preparation of aryl carboxylic acids and derivatives thereof by the carbonylation of aryl sulfonyl chlorides. The aryl sulfonyl chlorides are reacted with carbon monoxide and water or an alcohol or amine in the presence of a zero-valent metal catalyst consisting essentially of palladium.
    Type: Grant
    Filed: July 6, 1984
    Date of Patent: March 26, 1985
    Assignee: Eastman Kodak Company
    Inventors: Carl M. Lentz, James R. Overton, David D. Cornell
  • Patent number: 4506092
    Abstract: The present invention provides a process for the preparation of aryl carboxylic acids and derivatives thereof by the carbonylation of triaryl sulfonium salts. The triaryl sulfonium salts are reacted with carbon monoxide and water or an alcohol or amine in the presence of a triaryl phosphine and a zero-valent metal catalyst selected from palladium or rhodium.
    Type: Grant
    Filed: July 6, 1984
    Date of Patent: March 19, 1985
    Assignee: Eastman Kodak Company
    Inventors: Carl M. Lentz, James R. Overton, David D. Cornell
  • Patent number: 4496720
    Abstract: A novel process for the preparation of thioethers comprising reacting a silylated thiol of the formulaR--S--SiR.sub.1 R.sub.2 R.sub.3 Iwherein R is an organic group and R.sub.1, R.sub.2 and R.sub.3 are individually selected from the group consisting of alkyl of 1 to 4 carbon atoms with an organic halide, sulfate or sulfonate in the presence of hexamethylphosphoric triamide as a solvent or co-solvent preferably under neutral conditions in aprotic solvents at a temperature between 0.degree. and 150.degree. C.
    Type: Grant
    Filed: March 7, 1983
    Date of Patent: January 29, 1985
    Assignee: Gist-Brocades N.V.
    Inventors: Cornelis A. Bruynes, Theodorus K. Jurriens
  • Patent number: 4490558
    Abstract: Thioethers are prepared by a process wherein an alkali metal mercaptide is reacted with an alcohol and carbon monoxide or with a formate, and are useful starting materials for the preparation of dyes, crop protection agents, drugs and rubber auxiliaries.
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: December 25, 1984
    Assignee: BASF Aktiengesellschaft
    Inventor: Kaspar Bott
  • Patent number: 4449004
    Abstract: A process for preparing organic thioethers of formula R--S--R.sub.1 in which R is an aliphatic, aryl, arylaliphatic or heterocyclic radical and R.sub.1 is an aliphatic or arylaliphatic radical, from organic dithiocarbonates and organic halides or sulphonates, in the presence of an aqueous alkaline base and a phase transfer catalyst, at a temperature of between 50.degree. and 100.degree. C. for a time of 10-60 minutes.
    Type: Grant
    Filed: April 13, 1982
    Date of Patent: May 15, 1984
    Assignee: Consiglio Nazionale Delle Ricerche
    Inventors: Iacopo Degani, Rita Fochi, Valeria Regondi
  • Patent number: 4442042
    Abstract: An improved process for making propane sulfonates without isolating intermediates is provided comprising using an aqueous NaOH system instead of metallic sodium and recycling a portion of the product phase transfer as catalyst.
    Type: Grant
    Filed: April 30, 1981
    Date of Patent: April 10, 1984
    Assignee: Mobil Oil Corporation
    Inventor: Kirk D. Schmitt
  • Patent number: 4438259
    Abstract: Di(vinylaryl)alkyl polysulfides and curable, low odor (vinylaryl)alkyl-terminated polysulfide copolymers having the general structure ##STR1## wherein n is an integer from about 2 to about 8, 1 and m are positive integers, each R is independently an organic polyradical with the radicals residing on carbon atoms, p is zero or a positive integer which is the difference between the number of radicals on R and 2, and each Z is independently chosen from the class consisting of (vinylaryl)alkyl and other noncrosslinking monoradicals, provided that a sufficient proportion of the Z groups are (vinylaryl)alkyl that the polymer, when cured, does not cold flow. Additionally, a method of preparing said polymers and useful adhesive, sealant and caulking compositions made therefrom are disclosed.
    Type: Grant
    Filed: September 29, 1982
    Date of Patent: March 20, 1984
    Assignee: The Dow Chemical Company
    Inventors: Victor E. Meyer, Thomas E. Dergazarian
  • Patent number: 4438282
    Abstract: Sulfides prepared by reacting a sulfoxide with a hydrazine or hydroxylamine derivative or a quaternary salt thereof are useful starting materials for the preparation of drugs, pesticides and dyes.
    Type: Grant
    Filed: June 23, 1982
    Date of Patent: March 20, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Hartmut Lardon, Guenther Seybold
  • Patent number: 4424400
    Abstract: An oligoisobutylcyclohexane of the formula: ##STR1## wherein R.sup.1 -R.sup.5 are identical or different and independently denote hydrogen, a C.sub.1 -C.sub.4 - alkyl group, C.sub.1 -C.sub.4 -alkoxy group or a C.sub.1 -C.sub.4 -alkylthio substitutent and R.sup.6 denotes a branched chain C.sub.12 -C.sub.40 -alkyl group of trimeric to decameric isobutene,a process for preparing such oligoisobutylcyclohexanes and their use as dielectric liquids, lubricants, heat transfer media and the like.
    Type: Grant
    Filed: March 13, 1981
    Date of Patent: January 3, 1984
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl-Heinz Hentschel, Rolf Dhein
  • Patent number: 4396553
    Abstract: This invention is directed to tetrahydronaphthalene and indane compounds and processes thereto. These compounds are useful as tumor inhibiting agents, in the treatment of neoplasms and dermatological conditions.
    Type: Grant
    Filed: February 4, 1982
    Date of Patent: August 2, 1983
    Assignee: Hoffmann-La Roche Inc.
    Inventor: Michael Klaus
  • Patent number: 4371721
    Abstract: A process for selective cracking of 1,4-disubstituted benzene compounds having at least one polar substituent. Mixtures containing isomers of such a compound are brought into contact with a specified type of shape selective crystalline zeolite catalyst under conditions of temperature and pressure conducive to reaction of said benzene compound, thereby selectively reacting the 1,4-disubstituted isomer in preference to the 1,2- and 1,3-disubstituted isomers of said polar benzene compound. The shape selective zeolite catalysts employed herein are crystalline zeolites characterized by a silica to alumina ratio of at least about 12 and a constraint index within the approximate range of 1 to 12.
    Type: Grant
    Filed: September 25, 1981
    Date of Patent: February 1, 1983
    Assignee: Mobil Oil Corporation
    Inventor: Margaret M. Wu
  • Patent number: 4347256
    Abstract: This invention relates to substituted isopentenyl phenyl compounds and their use as anti-juvenile hormones. The compounds have been found effective in the control of insects by inhibiting the actions of juvenile hormones. Such compounds act to induce precocious maturation of immature insects resulting in a reduction in the ecological impact of the insect. Additional effects which have been obtained include sterilization of mature insects. Based on previous research it is also believed these compounds will cause interruption of embryogenesis in insect eggs, the induction of diapause in insects and the prevention of sex pheromone secretion in insects.
    Type: Grant
    Filed: March 2, 1981
    Date of Patent: August 31, 1982
    Assignee: Cornell Research Foundation, Inc.
    Inventor: William S. Bowers
  • Patent number: 4287125
    Abstract: Benzenoid ethers/thioethers are prepared by reacting an activated halobenzene with an anionic reactant, RA.sup.- M.sup.+, in the presence of at least one tertiary amine sequestering agent having formula:N--CHR.sub.1 --CHR.sub.2 --O--CHR.sub.3 --CHR.sub.4 --O--.sub.n R.sub.5 ].sub.
    Type: Grant
    Filed: June 20, 1980
    Date of Patent: September 1, 1981
    Assignee: Rhone-Poulenc Industries
    Inventor: Gerard Soula
  • Patent number: 4210552
    Abstract: Certain sulfonium salts are herein described which are useful corrosion inhibitors in aqueous acidic cleaning solutions, even in the presence of ferric ions.
    Type: Grant
    Filed: September 28, 1978
    Date of Patent: July 1, 1980
    Assignee: The Dow Chemical Company
    Inventors: Wayne W. Frenier, William J. Settineri