Patents Examined by Donald B. Moyer
  • Patent number: 5047593
    Abstract: This invention encompasses a compound of the formula: ##STR1## wherein: R.sub.1 and R.sub.2 are the same or different members of the group consisting of 1,1-dimethylethyl, halo, phenyl and substituted phenyl; Alk is straight or branched chain lower alkylene; R.sub.4 is hydrogen or lower alkyl; R.sub.3 is hydrogen or lower alkyl; or a cycloalkyl group of from 3 to 8 carbon atoms. The formulation of this invention are useful as anti-inflammatory and anti-allergy agents.
    Type: Grant
    Filed: June 2, 1989
    Date of Patent: September 10, 1991
    Assignee: G. D. Searle & Co.
    Inventor: Richard A. Mueller
  • Patent number: 5030752
    Abstract: A formylated alkylbenzenesulfonyl halide compound represented by the following general formula (I): ##STR1## wherein R.sub.1 is an alkyl group having 1 to 5 carbon atoms; R.sub.2 and R.sub.3 are each a member selected from the group consisting of a hydrogen atom and alkyl groups having 1 to 5 carbon atoms; X is a halogen atom; the sulfonyl halide group is present at the ortho or para position while the formyl group at the para or ortho position relative to the group R.sub.1 when R.sub.2 and R.sub.3 are both a hydrogen atom, while the sulfonyl halide group and the formyl group are present at the para positions relative to the groups R.sub.1 and R.sub.2, respectively, when R.sub.2 is an alkyl group and R.sub.3 is a hydrogen atom, or the sulfonylhalide group and the formyl group are present at the para positions relative to the groups R.sub.1 and R.sub.2, respectively, when R.sub.2 and R.sub.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: July 9, 1991
    Assignee: Agency of Industrial Science and Technology
    Inventors: Yoshie Souma, Jun Iyoda, Hirosi Sano
  • Patent number: 4987272
    Abstract: Novel dipropargyl ether of alpha, alpha'-bis(4-hydroxyphenyl)-para-diisopropylbenzene is useful in preparing resins having desirable properties as laminates and the like.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: January 22, 1991
    Assignee: Shell Oil Company
    Inventor: Anthony M. Pigneri
  • Patent number: 4933501
    Abstract: Terpene peroxides of formula: ##STR1## in which R denotes a tertiary alkyl radical substituted, if desired, by one or more phenyl radicals, a cycloalkyl radical or a trialkylsilyl radical, R.sub.1, R.sub.2 and R.sub.3, which are identical or different, each denote hydrogen or an aliphatic radical optionally containing one or more double or triple bonds and optionally substituted, and R.sub.4 denotes an aliphatic radical optionally containing one or more double or triple bonds and optionally substituted or R.sub.3 denotes hydrogen and R.sub.2 and R.sub.4 together form an alkylene radical which may be substituted by one or more methyl radicals, are obtained by reaction of a hydroperoxide of formula R--OOH with a compound of formula: ##STR2## the operation being carried out in a basic aprotic solvent.
    Type: Grant
    Filed: February 16, 1989
    Date of Patent: June 12, 1990
    Assignee: Rhone-Poulenc Sante
    Inventor: Claude Mercier
  • Patent number: 4933473
    Abstract: A process for production of neopentyl glycol by hydrogenation of hydroxypivaldehyde in the presence of a Pt-Ru-W catalyst. This catalyst exhibits high activity and selectivity, and further has a long life. Neopentyl glycol is an important intermediate for use in production of a wide variety of chemicals.
    Type: Grant
    Filed: April 21, 1989
    Date of Patent: June 12, 1990
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Teruyuki Ninomiya, Tomiyoshi Furuta, Seiji Kita, Yoshimi Fujii
  • Patent number: 4925991
    Abstract: Dien-1-ols of the general formula I ##STR1## where the radicals R.sup.1 to R.sup.7 are identical to or different from one another and each is hydrogen or straight-chain or branched alkyl or 1-12 carbon atoms and n is 1-14, are prepared by dehydrating a hydroxylalkenyl tert-butyl ether of the formula II ##STR2## in the presence of an acidic catalyst at elevated tempertures and essentially at the same time splitting off the tert-butyl protective group, as is 9-hydroxydodec-10-enyl 1-tert-butyl ether which is useful as an intermediate for synthesizing 8,10-dodecadienol.
    Type: Grant
    Filed: August 24, 1988
    Date of Patent: May 15, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Mackenroth, Wolfgang Hoelderich, Rainer Becker, Walter Seufert
  • Patent number: 4922038
    Abstract: This invention provides for a process for the preparation of 1,1,1,2-tetrafluorodichloroethane (FC-114a) by reacting CF.sub.2 .dbd.CFCl in a polar aprotic solvent with a source of fluoride ion selected from at least one alkali metal fluoride and/or at least one tetraalkylammonium fluoride and with a source of chlorine selected from at least one of CCl.sub.4, CCl.sub.3 CCl.sub.3, and CCl.sub.3 CCl.sub.2 CCl.sub.3 at a temperature from about 25.degree. C. to about 150.degree. C.
    Type: Grant
    Filed: January 30, 1989
    Date of Patent: May 1, 1990
    Assignee: E. I. DuPont de Nemours and Company
    Inventors: Carl G. Krespan, Bruce E. Smart
  • Patent number: 4918241
    Abstract: A method of preparing an ether corresponding to the structure ##STR1## comprising reacting an aromatic iodine compound corresponding to the structure ##STR2## with methanol in the presence of a basic compound a copper catalyst and an amount of hydrogen which is effective to lower the oxidation state of the copper catalyst.
    Type: Grant
    Filed: August 7, 1989
    Date of Patent: April 17, 1990
    Assignee: Eastman Kodak Company
    Inventor: Thomas H. Larkins, Jr.
  • Patent number: 4910345
    Abstract: Crude nitrobenzaldehyde can be substantially purified from the undesired positional isomers if a treatment with 100-10,000% by weight of water and 1-30% by weight of an emulsifier, all with reference to the dry weight of the crude nitrobenzaldehyde, is undertaken at a temperature of 30.degree.-140.degree. C. and at a pH of 3-14.
    Type: Grant
    Filed: August 12, 1988
    Date of Patent: March 20, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Willi Streicher, Heinz U. Blank
  • Patent number: 4908383
    Abstract: Novel N-phenyl-N-carboxythioureas of the formula I ##STR1## in which R.sub.1 and R.sub.2 each represents C.sub.1 -C.sub.10 alkyl, C.sub.3 -C.sub.7 cycloalkyl or C.sub.5 -C.sub.6 cycloalkenyl,R.sub.3 represents hydrogen, halogen, C.sub.1 -C.sub.10 alkyl, C.sub.1 -C.sub.10 alkoxy or C.sub.1 -C.sub.10 alkylthio,R.sub.4 represents C.sub.1 -C.sub.10 alkyl, C.sub.2 -C.sub.10 alkenyl, C.sub.2 -C.sub.10 alkynyl or phenyl-C.sub.1 -C.sub.7 alkyl; C.sub.1 -C.sub.10 alkyl, C.sub.2 -C.sub.10 alkenyl, C.sub.2 -C.sub.10 alkynyl or phenyl-C.sub.1 -C.sub.7 alkyl each mono- or poly-substituted by halogen or interrupted one or several times by oxygen and/or sulphur; C.sub.3 -C.sub.8 cycloalkyl; or C.sub.3 -C.sub.8 cycloalkyl mono- or poly-substituted by halogen or by C.sub.1 -C.sub.5 alkyl, andR.sub.5 represents C.sub.1 -C.sub.10 alkyl; phenyl-C.sub.1 -C.sub.7 alkyl; C.sub.1 -C.sub.10 alkyl or phenyl-C.sub.1 -C.sub.7 alkyl each mono- or poly-substituted by halogen or interrupted one or several times by oxygen and/or sulphur; C.
    Type: Grant
    Filed: May 23, 1989
    Date of Patent: March 13, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Jozef Drabek, Josef Ehrenfreund
  • Patent number: 4906665
    Abstract: Novel hydroxyalkylcysteine derivatives of the following formula (I) and an expectorant comprising the same are disclosed. ##STR1## wherein n represents an integer of 5 to 24. The expectorant is stabile, has little side effects and toxicity, and exhibits an excellent expectorant effect.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: March 6, 1990
    Assignee: SS Pharmaceutical Co., Ltd.
    Inventors: Yoshikuni Itoh, Hiroyuki Mizuno, Chikako Kiyohara, Susumu Sato, Tatsuhiko Katori
  • Patent number: 4906786
    Abstract: Described herein are novel monomers, polyketals derived from such monomer, improved process for the production of such monomers and a process for producing the polyketals.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: March 6, 1990
    Assignee: Amoco Corporation
    Inventor: Donald R. Kelsey
  • Patent number: 4891449
    Abstract: Halogenated unsymmetrical higher alkyl bisphenoxy alkanes having utility as non-blooming flame retardant agents.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: January 2, 1990
    Assignee: Great Lakes Chemical Corporation
    Inventors: Dennis M. Borden, Nicolai A. Favstritsky, Enrico J. Termine
  • Patent number: 4891451
    Abstract: Vinyl ethers of the formula (I) ##STR1## where R.sup.1 to R.sup.3 are identical or different and are each hydrogen, a straight-chain or branched alkyl or alkenyl radical of not more than 12 carbon atoms, halogen-substituted alkyl, a cycloalkyl or cycloalkenyl radical of 5 to 8 carbon atoms, an aryl, alkylaryl, alkenylaryl, aralkyl or aralkenyl radical of 6 to 16 carbon atoms, halogen-substituted aryl or a heterocyclic radical and furthermore R.sup.1 and R.sup.2 or R.sup.1 and R.sup.3, together with the carbon atom to which they are bonded, may form a cycloalkane, cycloalkene or heterocyclic structure, and R.sup.4 is alkyl, alkylaryl or aralkyl, are prepared by a process in which an alcohol is eliminated from an acetal or ketal of the formula (II) ##STR2## where R.sup.1 to R.sup.4 have the above meanings, in the presence of borosilicate and/or iron silicate zeolites as catalysts.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: January 2, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Hoelderich, Norbert Goetz, Leopold Hupfer
  • Patent number: 4891450
    Abstract: The invention provides novel arylalkene compounds of formula I, a process for their preparation and their use as intermediates for insecticidal compounds, comprising, ##STR1## wherein W represents 1 to 4 substituents selected from halo, alkyl, alkoxy, haloalkyl, haloalkoxy and alkoxyalkyl, or W represents a bidentate alkylene or alkylenedioxy group linking adjacent carbon atoms, X represents fluoroalkyl, and Y is selected from chlorine, bromine and alkoxy; and a process for preparing said ethers. The compounds of formula I are prepared by reacting a ketone of formula: ##STR2## with a phosphonium salt of formula Hal.sup.- (Q).sub.3 P.sup.+ -CH.sub.2 -Y, where Hal.sup.- represents a halide ion and Q represents alkyl or aryl.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: January 2, 1990
    Assignee: Imperial Chemical Industries PLC
    Inventors: Robin A. E. Carr, Lyn Powell
  • Patent number: 4886908
    Abstract: (R)-4-amino-3-hydroxybutyric acid is prepared from the hydrochloride of the methyl ester or ethyl ester of (2S, 4R)-4-hydroxyproline via the intermediary stages of the corresponding, non-isolated (R)-4-hydroxy-1-pyrroline-2-carboxylic acid ester and the isolated (R)-4-hydroxy-2-pyrrolidone. The (R)-4-amino-3-hydroxybutyric acid which is useful for pharmacological purposes is obtainable in a high yield according to this method.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: December 12, 1989
    Assignee: Degussa Aktiengesellschaft
    Inventor: Johannes Haeusler
  • Patent number: 4886898
    Abstract: Certain intermediate aminomethyl-5,6,7,8-tetrahydronaphthyl-oxyacetic acid derivatives of the formula ##STR1## in which R.sup.2 is hydroxyl, alkoxy, phenoxy, benzoxy or NR.sup.4 R.sup.5, andR.sup.4 and R.sup.5 each independently is hydrogen or alkyl, or one of the radicals R.sup.4 or R.sup.5 is benzyl,which are useful in preparing the corresponding aryl-sulfonamides which in-turn have antithrombotic, antiatherosclerotic and antiischaemic properties.
    Type: Grant
    Filed: May 16, 1989
    Date of Patent: December 12, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ulrich Niewohner, Franz-Peter Hoever, Folker Lieb, Ulrich Rosentreter, Elisabeth Perzborn, Volker-Bernd Fiedler, Friedel Seuter
  • Patent number: 4885411
    Abstract: The invention relates to a novel supported catalyst comprising (a) copper, (b) a metal having an atomic weight greater than 100 and selected from Groups VIIB and VIII of the Periodic Table and (c) an alkali metal in a weight ratio of about 8-40:0.05-5:1.5-10 and to the use of the catalyst in the hydrogenation of butyrolactone to 1,4-butanediol.
    Type: Grant
    Filed: August 19, 1988
    Date of Patent: December 5, 1989
    Assignee: GAF Corporation
    Inventors: Waldo De Thomas, Paul D. Taylor
  • Patent number: 4885415
    Abstract: Benzotrifluorides substituted by fluorine and optionally in addition by chlorine, some of which are new, are prepared by hydrogenating benzotrifluorides which are substituted by fluorine and chlorine, in the presence of a catalyst and a hydrogen chloride acceptor.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: December 5, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Albrecht Marhold, Rudolf Braden
  • Patent number: 4885410
    Abstract: The invention relates to a novel supported catalyst comprising a combination of metals with nickel as component (a), a metal having an atomic number greater than 43 from Groups VIIB and VIII of the Periodic Table as component (b) and rhenium as component (c) in a weight ratio of (a):(b):(c) of about 10-90:0.05-5:0.03-10 and to the use of the catalyst for high pressure hydrogenation reactions, particularly for the hydrogenation of butanediol product containing aldehyde, butynediol and color forming impurities.
    Type: Grant
    Filed: August 17, 1988
    Date of Patent: December 5, 1989
    Assignee: GAF Corporation
    Inventor: Waldo De Thomas