Nitro Or Nitroso Patents (Class 562/434)
  • Patent number: 4371547
    Abstract: 2-Benzylideneglutaraldehydes of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 independently are hydrogen or a substituent selected from the group consisting of halo, lower-alkyl, phenyl, carboxy, lower-alkoxycarbonyl, phenoxycarbonyl, aminocarbonyl, hydroxysulfonyl, nitro, cyano, hydroxy, lower-alkoxy and phenoxy, a method of use thereof as disinfectants, disinfectant compositions comprising them, and 2,6-dialkoxy-3-(.alpha.-alkoxybenzyl)tetrahydropyrans of the formula ##STR2## where R.sup.1, R.sup.2 and R.sup.3 are as defined above and R.sup.4 and R.sup.5 independently are alkyl of one to four carbon atoms, which are intermediates for their preparation are disclosed.
    Type: Grant
    Filed: August 21, 1981
    Date of Patent: February 1, 1983
    Assignee: Sterling Drug Inc.
    Inventors: Wolfgang Munzenmaier, Heinz Eggensperger, Helmut H. Ehlers, Wolfgang Beilfuss, Lothar Bucklers, Hans-Peter Harke
  • Patent number: 4351950
    Abstract: Novel substituted arylene compounds and methods for their preparation and use are disclosed. These new compounds are useful as anti-arteriosclerotic agents.
    Type: Grant
    Filed: January 2, 1980
    Date of Patent: September 28, 1982
    Assignee: Warner-Lambert Company
    Inventor: Ila Sircar
  • Patent number: 4348534
    Abstract: 2-Aryloxy-2-halopropionic acid compounds are prepared by reacting 2-aryloxypropionic acid compounds with N-halocarboxylic acid imides in the presence of aliphatic halohydrocarbons as solvents, and of from 0.0001 to 0.001 mole of halogen per mole of N-halocarboxylic acid imide, from 0.005 to 0.05 per cent by weight of water, based on N-halocarboxylic acid imide, and from 0.0005 to 0.005 mole of azo-bis-isobutyronitrile and/or dibenzoyl peroxide, per mole of N-halocarboxylic acid imide.The end products obtainable by the process of the invention are valuable starting materials for the preparation of drugs, crop protection agents and dyes.
    Type: Grant
    Filed: June 17, 1981
    Date of Patent: September 7, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerd Husslein, Gerhard Hamprecht
  • Patent number: 4340765
    Abstract: 4-Phenoxy-2-butene derivatives are disclosed as inhibitors of cytokinin plant growth regulatory activity and as possessing seed germination regulatory properties and senescence delaying activity when applied to plants. 4-Phenoxy-2-butene derivatives can also be useful as plant dwarfing agents, agents to retard seedling development or as herbicides.
    Type: Grant
    Filed: August 14, 1980
    Date of Patent: July 20, 1982
    Inventors: Gary M. Gray, George Schwartzkopf, Jr., J. T. Baker Chemical Co.
  • Patent number: 4338316
    Abstract: The disclosure relates to 9.beta.-aryloxy prostane derivatives, for example 16-(3-chlorophenoxy)-11.alpha.,15.alpha.-dihydroxy-16-methyl-9.beta.-pheno xy-18,19,20-trinor-5-cis,13-trans-prostadienoic acid, which possess high activity as abortifacients, cervical softeners, inducers of parturition or inhibitors of gastric acid production in mammals. These properties are typical of prostaglandin analogues of the E series, but chemically the new 9.beta.-aryloxy prostane derivatives are prostaglandin F series analogues and are therefore more stable than the E series analogues previously used for the above purposes. The new derivatives are manufactured by known analogy processes, and are formulated in conventional manner.
    Type: Grant
    Filed: September 26, 1979
    Date of Patent: July 6, 1982
    Assignee: Imperial Chemical Industries Limited
    Inventor: Peter R. Marsham
  • Patent number: 4307232
    Abstract: Process for preparing the substituted phosphonoalkanoic acid of the formula ##STR1## wherein: R.sup.1 is alkyl of 1-8 carbon atoms, aralkyl of 7-10 carbon atoms, phenyl, or substituted phenyl of 6-10 carbon atoms;R.sup.2 is H, hydrocarbyl of 1-18 carbon atoms, or substituted hydrocarbyl of 1-18 carbon atoms, wherein in said hydrocarbyl groups the carbon atom attached to the ##STR2## moiety is substituted with two or three hydrogen atoms or is a carbon atom of an aromatic ring; andY is oxygen or sulfur,which process comprises contacting and reacting, at a temperature of about -70.degree. C. to about 125.degree. C., a pressure of about 1-100 atmospheres (0.1-10 MPa), and for a time sufficient to effect reaction, the phosphite ester of the formula ##STR3## wherein R.sup.1 and Y are as defined above, with the .alpha.-halocarboxylic acid of the formula R.sup.2 CHXCO.sub.2 H, wherein X is Cl, Br, or I and R.sup.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: December 22, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: David R. Brittelli
  • Patent number: 4304728
    Abstract: Compounds are described of the formula ##STR1## in which R.sup.1 is COOR.sup.5, CONHR.sup.5, cyano, 5-tetrazolyl or R.sup.6, where R.sup.5 is hydrogen or C.sub.1-8 alkyl and R.sup.6 is phenyl or naphthyl, the phenyl or naphthyl group being optionally substituted by one or more group selected from halogen, C.sub.1-6 alkyl, C.sub.1-4 alkoxy, hydroxy, benzyloxy, nitro, trifluoromethyl, carboxyl, C.sub.1-4 alkylsulphinyl, C.sub.1-4 alkylsulphonyl, N(R.sup.5).sub.2, NHCOR.sup.5 and SR.sup.5 ; R.sup.2 is R.sup.6 or --CH.dbd.CH--R.sup.6 when R.sup.1 is COOR.sup.5, CONHR.sup.5, cyano or 5-tetrazolyl, or R.sup.2 is --CH.dbd.CH--R.sup.6 when R.sup.1 is R.sup.6 ; R.sup.3 is hydrogen, C.sub.1-6 alkyl, halogen, hydroxy or --OCH.sub.2 R.sup.6 ; and R.sup.4 is hydrogen, C.sub.1-6 alkyl or halogen; and salts thereof. The compounds have pharmaceutical properties and in particular are useful in the treatment of immediate hypersensitivity conditions such as asthma.
    Type: Grant
    Filed: March 27, 1980
    Date of Patent: December 8, 1981
    Assignee: Lilly Industries Limited
    Inventors: Barry P. Clark, William J. Ross, Alec Todd
  • Patent number: 4288615
    Abstract: 3-Nitrobenzoic acid is recovered from a mixture of 2-, 3- and 4-nitrobenzoic acids by basifying to a pH of 8-12 and then adding an acid to reduce the pH to 1.5-3.5 to precipitate the desired compound.
    Type: Grant
    Filed: February 21, 1980
    Date of Patent: September 8, 1981
    Assignee: American Cyanamid Company
    Inventor: John H. Bright
  • Patent number: 4284797
    Abstract: A novel improved process for separating mixtures of 3- and 4-nitrophthalic acid is described. The said process comprises treating a mixture of 3- and 4-nitrophthalic acid, which mixture is free from inorganic acid residues, in an aqueous-organic medium containing 1-20 percent by volume of water, at a temperature of between 20.degree. and 100.degree. C., stepwise with a base capable of forming salts of 3- and 4-nitrophthalic acid, which salts are essentially insoluble in the reaction medium, the treatment being carried out by adding base until a pH value of about 2.8 is obtained, separating the precipitating product consisting mainly of a 3-nitrophthalic acid mono-salt, subsequently precipitating, by the addition of further base, a product consisting principally of a 4-nitrophthalic acid salt, and finally converting the resulting nitrophthalic acid salts separately into the corresponding free acids, and optionally purifying these.
    Type: Grant
    Filed: May 31, 1979
    Date of Patent: August 18, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Peter Furrer, Harry Beyeler
  • Patent number: 4278598
    Abstract: Novel photographic dye release compounds have the structure: ##STR1## wherein R.sup.1 is an aromatic group containing 5-7 members in the ring to which Nu and E are attached; R.sup.2 and R.sup.3 are bivalent organic groups containing from 1-3 atoms in the bivalent linkage which are alkylene, oxyalkylene or thiaalkylene; Nu is a nucleophilic group which is a hydrazine, an hydroxyamino, an hydroxy, a sulfonamido, a primary amino or alkali-labile precursors for said nucleophilic groups; E is an electrophilic group which is a carbonyl or a sulfonyl; Q is a bivalent group providing a mono atom linkage between E and X.sub.2 and is amino providing a mono atom nitrogen linkage, an oxygen atom, a sulfur atom or a selenium atom, provided that Nu and E are positioned on a ring of said aromatic group to provide for intramolecular formation of a 5- to 7-membered ring between Nu and E displacing Q--X.sub.2 from E; one of X.sup.1 or Q--X.sub.
    Type: Grant
    Filed: September 1, 1976
    Date of Patent: July 14, 1981
    Assignee: Eastman Kodak Company
    Inventors: Gerald C. Hinshaw, Paul B. Condit
  • Patent number: 4266060
    Abstract: The invention relates to compounds of formula: ##STR1## wherein R'.sub.1 =H, OH or an alkyl group, preferably a lower alkyl group, alkylthio or alkoxy, an halogen or an amino group,R'.sub.2 =H or a lower alkyl group.These compounds have antitumoral and antiviral properties useful for the treatment of cancers.
    Type: Grant
    Filed: April 13, 1978
    Date of Patent: May 5, 1981
    Assignee: Agence Nationale de Val orisation de la Recherche (ANVAR)
    Inventors: Emile Bisagni, Claire Ducrocq, Christian Rivalle, Pierre Tambourin, Francoise Wendling, Jean-Claude Chermann, Luc Montagnier
  • Patent number: 4227015
    Abstract: Aryl substituted diketones and keto-esters, useful as antiviral agents and insecticides, are prepared by reacting an arylalkyl or arylalkenyl iodide with a metal salt of the appropriate diketone or keto-ester. The intermediate iodides are prepared by condensing a methyl cyclopropyl ketone with an aromatic aldehyde to give an arylvinyl cyclopropyl ketone, reducing the latter to an arylethyl cyclopropyl carbinol or arylvinyl cyclopropyl carbinol, treating the carbinol with phosphorus tribromide and then with zinc bromide to give an arylalkyl or arylalkenyl bromide, and then replacing the bromine atom by iodine.
    Type: Grant
    Filed: February 14, 1979
    Date of Patent: October 7, 1980
    Assignee: Sterling Drug Inc.
    Inventor: Joseph C. Collins
  • Patent number: 4220590
    Abstract: New optically active bis phosphine compounds which are usful in optically active catalysts. Such catalysts are particularly useful in catalytic asymmetric hydrogenation.
    Type: Grant
    Filed: July 31, 1978
    Date of Patent: September 2, 1980
    Assignee: Monsanto Company
    Inventors: William S. Knowles, Milton J. Sabacky, Billy D. Vineyard
  • Patent number: 4203928
    Abstract: 2-Nitrobenzaldehyde, a valuable chemical intermediate, is produced by treating the alkali metal salt of a 2-nitrophenylpyruvic acid with an alkali metal hypochlorite in an aqueous medium to produce the corresponding 2-nitrobenzylidene chloride which, upon hydrolysis, yields the desired aldehyde. The 2-nitrophenylpyruvic acid starting material is advantageously prepared through the reaction of a 2-nitrotoluene and a diester of oxalic acid in the presence of an alkali metal alcoholate and can be used directly in the subsequent hypochlorite reaction without isolation. The process is industrially attractive in terms of the overall yield, the availability of starting materials, and the ease of the manipulative steps involved.
    Type: Grant
    Filed: March 11, 1975
    Date of Patent: May 20, 1980
    Assignee: Bayer Aktiengesellschaft
    Inventor: Horst Meyer
  • Patent number: 4191840
    Abstract: Anti-allergic agents of aromatic oxamic acid derivation present the following formula: ##STR1## in which A is a member selected from the group consisting of .alpha.-naphthyl, .beta.-napthtyl, phenyl, 2,6-di-chlorophenyl, and substituted phenyl moieties containing from one to three substituents in any of the 2,3,4 and 5 positions of the phenyl ring, independently selected from the group consisting of lower alkyl, lower alkylthio, lower alkylsulfinyl, lower alkoxy, hydroxy (lower)alkoxy, 2-(oxalyloxy) ethoxy, benzyloxy, N-mono- and di-lower alkylamino(lower)alkoxy, halo, sulfamyl, polyhalo(lower)alkyl, carbamyl, N-lower alkylcarbamyl, nitro, mono and di lower alkylamino, carboxy, lower alkylcarbonyl, carb(lower)alkoxy, phenoxy(lower)alkoxy, and oxalamidophenoxy radicals;and pharmaceutically acceptable salts thereof.
    Type: Grant
    Filed: February 7, 1979
    Date of Patent: March 4, 1980
    Assignee: American Home Products Corporation
    Inventors: John H. Sellstedt, Charles J. Guinosso, Albert J. Begany
  • Patent number: 4182899
    Abstract: The present application relates to the optical resolution into optical antipodes of compounds of the formula ##STR1## as well as to salts consisting of an optical isomer of a compound of the above formula and an optical isomer of 2-aminobutanol. The optically active compounds of the above formula are employed as starting materials for the production of semisynthetic antibiotics of the cephalosporin or penicillin type.
    Type: Grant
    Filed: August 7, 1978
    Date of Patent: January 8, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Yung B. Chae, Dae W. Kim
  • Patent number: 4182905
    Abstract: Organic compounds having a substituent represented by the formula ##STR1## wherein M is alkali metal or ammonium are useful complexing agents for metal and/or alkaline earth metal ions.
    Type: Grant
    Filed: September 2, 1977
    Date of Patent: January 8, 1980
    Assignee: Monsanto Company
    Inventor: Kent P. Lannert
  • Patent number: 4171374
    Abstract: Novel 1-aryloxy-3-amidoalkylamino-2-propanol derivatives, processes for their manufacture, pharmaceutical compositions containing them and methods of using them in the treatment of heart diseases. The compounds possess .beta.-adrenergic blocking activity and some of them additionally possess cardiac stimulant activity. Representative of the compounds disclosed is 1-(2-fluorophenoxy)-3-.beta.-(3-benzylureido) ethylamino-2-propanol.
    Type: Grant
    Filed: February 16, 1978
    Date of Patent: October 16, 1979
    Assignee: Imperial Chemical Industries Limited
    Inventor: Leslie H. Smith
  • Patent number: 4149011
    Abstract: Intermediate compound useful in the preparation of Benzimidazol-5-yl alanine derivatives useful as antihypertensive agents.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: April 10, 1979
    Assignee: Merck & Co., Inc.
    Inventors: Chandravadan N. Talaty, Jeremy Wright, Nicolas Zenker
  • Patent number: 4146385
    Abstract: The invention provides novel phenoxyalkylcarboxylic acids which are useful in therapy as metabolic regulators and in agriculture as selective herbicides.
    Type: Grant
    Filed: August 16, 1976
    Date of Patent: March 27, 1979
    Assignee: Societe de Recherches Industrielles S.O.R.I.
    Inventor: Bernard Majoie
  • Patent number: 4138589
    Abstract: Certain N-[poly(hydroxyalkyl)alkyl],2,4,6-triiodoisophthalamic acids are useful as x-ray contrast agents.
    Type: Grant
    Filed: July 21, 1977
    Date of Patent: February 6, 1979
    Assignee: Mallinckrodt, Inc.
    Inventor: Philip E. Wiegert
  • Patent number: 4122050
    Abstract: A foamable polymer composition comprising a resinous polymer and a mixture of polycyclic aromatic polycarboxylic acids that is substantially soluble in acetone and substantially soluble in water obtained as a result of the nitric acid oxidation of a carbonaceous material, such as coal.
    Type: Grant
    Filed: March 29, 1978
    Date of Patent: October 24, 1978
    Assignee: Gulf Research & Development Company
    Inventors: Johann G. D. Schulz, Edward T. Sabourin
  • Patent number: 4118420
    Abstract: Organic compounds having a substituent represented by the formula ##STR1## wherein M is alkali metal or ammonium are useful complexing agents for metal and/or alkaline earth metal ions.
    Type: Grant
    Filed: March 25, 1976
    Date of Patent: October 3, 1978
    Assignee: Monsanto Company
    Inventor: Kent P. Lannert