Acyclic Patents (Class 564/268)
  • Patent number: 4789736
    Abstract: A family of propylene amine oxime ligands has the formula 2 ##STR1## wherein preferably R.sup.1 is Cl-C4 alkyl or phenyl and each of R, R.sup.2, R.sup.3 and R.sup.4 is H or Cl-C4 alkyl. The technetium-99m complexes of these ligands are lipophilic neutral complexes useful as diagnostic radiopharmaceuticals and particularly for brain scanning. The ligands show stereoisomerism. The preparation and properties of the dl- and meso-stereoisomers, and of the d- and l-enantiomers, are described. The l-enantiomer and the dl-stereoisomer of the preferred compound (2, R=R.sup.1 =R.sup.2 =CH.sub.3, R.sup.3 =R.sup.4 =H) show good retention in the brain.
    Type: Grant
    Filed: March 11, 1986
    Date of Patent: December 6, 1988
    Assignee: Amersham International plc
    Inventors: Lewis R. Canning, David P. Nowotnik, Rudi D. Neirinckx, Ian M. Piper
  • Patent number: 4788130
    Abstract: Novel 2,3-dihydro-1H-indene derivatives and salts thereof represented by the general formula (1), ##STR1## [wherein R.sup.1 and R.sup.2 are each a hydrogen atom, a lower alkyl group, a phenyl group which may have halogen atoms and/or alkyl groups as the substituents on the phenyl ring; R.sup.3 is a halogen atom or a lower alkyl group; R.sup.4 is a hydrogen atom, a halogen atom, a phenyl-lower alkyl group, a cycloalkyl-lower alkyl group or the like; R.sup.5 is a hydroxyimino group, an alkylamino group or a group of the formula --NHR.sup.8 (wherein R.sup.8 is a hydrogen atom, a halogen-substituted lower alkanoyl group or the like); R.sup.6 is a hydrogen atom or a phenyl group; and R.sup.7 is a hydrogen atom or a lower alkyl group].
    Type: Grant
    Filed: August 29, 1985
    Date of Patent: November 29, 1988
    Assignee: Otsuka Pharmaceutical Co., Ltd.
    Inventors: Yasuo Oshiro, Hiraki Ueda, Kazuyuki Nakagawa
  • Patent number: 4782088
    Abstract: The invention relates to compounds of antihypertensive and antithrombotic activity of the formula or its pharmaceutically acceptable salt: ##STR1## wherein R.sup.1 is hydrogen, lower alkyl, or lower alkoxyphenyl,R.sup.2 is hydrogen or lower alkyl,R.sup.4 is lower alkyl,R.sup.6 is hydrogen or lower alkyl,R.sup.7 is lower alkyl which is optionally substituted by hydroxy or lower alkanoyloxy, andR.sup.10 is hydrogen or lower alkyl which is optionally substituted by carboxy or esterified carboxy.
    Type: Grant
    Filed: December 29, 1986
    Date of Patent: November 1, 1988
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masanori Okamoto, Morita Iwami, Shigehiro Takase, Itsuo Uchida, Kazuyoshi Umehara, Masanobu Kohsaka, Hiroshi Imanaka
  • Patent number: 4714605
    Abstract: Technetium-99m labeled dioxime complexes are useful for imaging the myocardium, brain and hepatobiliary system, in humans and other mammalian species.
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: December 22, 1987
    Assignee: E. R. Squibb & Sons, Inc.
    Inventors: Thomas A. Feld, Pedro N. Juri, Elizabeth N. Treher
  • Patent number: 4673757
    Abstract: Carbon-carbon double bonds are hydrogenated selectively in a compound containing a reducible, nitrogen-containing group if the hydrogenation is carried out in the presence of a ruthenium complex catalyst. Also disclosed are new ruthenium complexes for use in such selective hydrogenation.
    Type: Grant
    Filed: October 11, 1984
    Date of Patent: June 16, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Paul Fiedler, Rudolf Braden, Hartmuth Buding
  • Patent number: 4654169
    Abstract: The invention concerns the novel odorants 2,2,4-trimethyl-1-phenyl-3-pentanone oxime, 2,4,4-trimethyl-5-phenyl-3-hexanone oxime and 2,4,4-trimethyl-5-phenyl-3-heptanone oxime, a process for making same, odorant compositions containing same and methods for preparing improved odorant compositions using same.
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: March 31, 1987
    Assignee: Givaudan Corporation
    Inventor: Paul A. Ochsner
  • Patent number: 4560797
    Abstract: Improved processes for the conversion to oximes by selective oxidation, in the vapor phase, of saturated primary aliphatic or alicyclic amines having 2 to 12 carbon atoms especially cyclohexylamine to cyclohexanone oxime with elemental oxygen, in a reaction zone, in the presence of an effective amount of a catalyst comprising an oxygen-containing tungsten compound and alumina by (1) periodically regenerating the oxygen-containing tungsten catalyst by heating same at about 250.degree. C.-300.degree. C. in the presence of elemental oxygen, or (2) maintaining the temperature of the oxygen-containing tungsten catalyst in a range of about 100.degree. C.-145.degree. C. or (3) employing higher mol fractions of oxygen and of amine in a range of about 0.2-0.4 in the vapor phase are disclosed. An improved method of preparing an oxygen-containing tungsten on an alumina catalyst is also disclosed.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: December 24, 1985
    Assignee: Allied Corporation
    Inventors: Jean Yamanis, Emery J. Carlson, John N. Armor
  • Patent number: 4544714
    Abstract: This invention discloses a number of novel odorant oximes having from 11 to 14 carbon atoms, processes for making same, and odorant compositions containing same.
    Type: Grant
    Filed: January 26, 1983
    Date of Patent: October 1, 1985
    Assignee: Givaudan Corporation
    Inventor: Paul A. Ochsner
  • Patent number: 4539405
    Abstract: The novel explosive compound, 1,4-dinitrofurazano[3,4-b]piperazine, is prred by the reaction of 2,3-dioximinopiperazine with a base, followed by the nitration of the intermediate furazano[3,4-b]piperazine. The nitrated compound has a density, detonation pressure, detonation velocity and Isp similar to RDX while being highly insensitive.
    Type: Grant
    Filed: April 16, 1984
    Date of Patent: September 3, 1985
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Rodney L. Willer
  • Patent number: 4515616
    Abstract: Triazolyl ketone-oximes and triazolyl dioximes of the general formula I ##STR1## where Ar is an aryl radical from the group comprising biphenylyl, naphthyl and phenyl, which radical can be substituted by halogen, nitro, cyano or trifluoromethyl, by alkyl, alkoxy or alkenyl, each of not more than 5 carbon atoms or by phenoxy, andn is 1 or 2,X is oxygen or .dbd.N--OR.sup.3, R.sup.3 being hydrogen, unsubstituted, halogen-substituted or alkoxy-substituted alkyl, alkenyl or alkynyl, each of not more than 5 carbon atoms, or benzyl which is unsubstituted or substitutedby halogen, nitro, cyano or trifluoromethyl, or by alkyl or alkoxy, each of not more than 4 carbon atoms, or is --CO--R.sup.4,R.sup.4 being unsubstituted, halogen-substituted or alkoxy-substituted alkyl of not more than 5 carbon atoms, an aromatic radical or --NH--R.sup.5, R.sup.5 being alkyl or not more than 4 carbon atoms or an aromatic radical,R.sup.
    Type: Grant
    Filed: May 27, 1983
    Date of Patent: May 7, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Costin Rentzea, Wolfgang Spiegler, Johann Jung
  • Patent number: 4504681
    Abstract: A process for the production of oximes which comprises contacting, in the vapor phase, a primary saturated aliphatic or alicyclic amine of 2 to 12 carbon atoms with an elemental oxygen gas in the presence of an effective amount of a catalyst comprising an alumina or oxygen-containing tungsten substance on a metal oxide support using temperatures between about 130.degree. and 230.degree. C. at atmospheric pressure is disclosed. Preferred alumina catalysts are alumina xerogels, .gamma.-alumina and acidic, fluorinated alumina. Preferred oxygen-containing tungsten catalysts are WO.sub.3 on .gamma.-alumina or WO.sub.3 on alumina xerogels.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: March 12, 1985
    Assignee: Allied Corporation
    Inventor: John N. Armor
  • Patent number: 4426321
    Abstract: This invention discloses a number of novel odorant alkadienyl ketones, alcohols and oximes having from 9 to 15 carbon atoms, processes for making same and odorant compositions containing same.
    Type: Grant
    Filed: July 24, 1981
    Date of Patent: January 17, 1984
    Assignee: Givaudan Corporation
    Inventor: Paul A. Ochsner
  • Patent number: 4337358
    Abstract: Primary saturated aliphatic and alicyclic amines are oxidized by elemented oxygen to oximes, especially cyclohexylamine to cyclohexanone oxime, in vapor phase using silica gel catalyst; preferably using concentrations by volume such as 1% to 5% of amine and 5% to 30% of oxygen, and using temperatures between about 120.degree. C. and 250.degree. C. at atmospheric pressure.
    Type: Grant
    Filed: April 13, 1981
    Date of Patent: June 29, 1982
    Assignee: Allied Corporation
    Inventor: John N. Armor
  • Patent number: 4297096
    Abstract: A new triazene compound of the formula:R--CH.dbd.N--N.dbd.N--OHwherein R is alkyl, alkenyl or aryl and its pharmaceutically acceptable salts thereof. The production and use of such compounds are also disclosed. The compounds are useful as smooth muscle relaxants and hypotensives.
    Type: Grant
    Filed: April 24, 1980
    Date of Patent: October 27, 1981
    Assignee: Fujisawa Pharmaceutical Co. Ltd.
    Inventors: Keizo Yoshida, Hirokazu Tanaka, Masanori Okamoto, Eiko Iguchi, Masanobu Kohsaka, Hatsuo Aoki, Hiroshi Imanaka
  • Patent number: 4277621
    Abstract: Novel substituted 11-amino-undeca-4,8-dienal and 11-amino-undecanal aldehyde-derivatives of the formulae Ia ##STR1## in which R.sub.1 to R.sub.6, Y and m are as defined in patent claim 1, and processes for their preparation are described. The compounds of the formulae Ia and Ib can be catalytically hydrogenated to novel 1,11-diaminoundecanes, which, in turn, can be used, for example, for the preparation of polycondensation products, in particular transparent polyamides, or as curing agents for epoxide resins.
    Type: Grant
    Filed: October 9, 1979
    Date of Patent: July 7, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Dieter Reinehr, Josef Pfeifer
  • Patent number: 4264528
    Abstract: A novel process of preparing ketoxime carbamate by forming a halogenated intermediate which is reacted with an alkali metal compound and an isocyanate.
    Type: Grant
    Filed: June 18, 1980
    Date of Patent: April 28, 1981
    Assignee: Diamond Shamrock Corporation
    Inventor: H. Glenn Corkins
  • Patent number: 4256668
    Abstract: An organic, substantially water-insoluble oxime product is recovered from the liquid reaction mixture of water, ammonium sulfate and the oxime product. First the reaction mixture is separated into a first liquid layer containing an aqueous ammonium sulfate solution and a second liquid layer containing an emulsion of the oxime product as the continuous phase and aqueous ammonium sulfate as the discontinuous phase. These layers are separated and the second liquid layer is contacted with solid ammonium sulfate for a time sufficient to agglomerate the discontinuous phase. The agglomerated discontinuous phase is then removed from the continuous phase. Thereafter, either a lites fraction can be distilled from the continuous phase or the oxime product can be distilled from the continuous phase, or both. The process is particularly applicable to the production of oximes such as Aldicarb oxime, cyclohexanone oxime and methylethylketoxime from aqueous reaction mixtures in which by-product ammonium sulfate is formed.
    Type: Grant
    Filed: June 20, 1979
    Date of Patent: March 17, 1981
    Assignee: Allied Chemical Corporation
    Inventors: Chempolil T. Mathew, Donald Pickens
  • Patent number: 4248837
    Abstract: Dioxime extractants having the following general formula: ##STR1## where R and R' may be any of a variety of organic hydrocarbon radicals such as aliphatic, alkyl and aryl radicals. R and R' may also be hydrogen. Preferably R is an unsaturated hydrocarbon or branch chain alkyl group containing from about 3 to 20 carbon atoms and R' is hydrogen or an unsaturated hydrocarbon or branch chain alkyl group containing from about 1 to 10 carbon atoms. Preferably, there is a difference of about 3 to 10 carbon atoms between R and R' resulting in dissymmetry of the resulting dioxime molecule. Preferably, the dioximes also contain a total of about 5 to 32 carbon atoms. Representative compounds are methyl octyl dioxime and methyl hexyl dioxime.Organic preparations containing such dioximes are useful for the extraction of copper, nickel and cobalt metal values from acid or basic aqueous solution.
    Type: Grant
    Filed: February 9, 1979
    Date of Patent: February 3, 1981
    Assignee: Kennecott Copper Corporation
    Inventors: Ralph W. M. Lai, John K. Litchfield
  • Patent number: 4248795
    Abstract: An improved process for preparing an organic sulfone compound by oxidizing the corresponding sulfide compound with an aqueous peracid solution.
    Type: Grant
    Filed: February 10, 1977
    Date of Patent: February 3, 1981
    Assignee: Union Carbide Corporation
    Inventor: John K. Chan