Benzophenones Or Benzothiophenones (i.e., The Carbon Is Part Of A Carbonyl Or Thiocarbonyl) Patents (Class 564/328)
  • Patent number: 4825001
    Abstract: The invention comprises cyclobutarene ketoaniline monomers and the process for preparing them. The monomers can be used to graft and/or endcap a monomer or polymer having at least 1 amino-reactive functionality. The grafted and/or endcapped monomer or polymer can subsequently be processed to prepare a highly crosslinked network. Said monomers have the formula: ##STR1## as a preferred embodiment.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: April 25, 1989
    Assignee: The Dow Chemical Company
    Inventors: Kenneth J. Bruza, Robert A. Kirchhoff
  • Patent number: 4795827
    Abstract: The invention comprises cyclobutarene ketoaniline monomers and the process for preparing them. The monomers can be used to graft and/or endcap a monomer or polymer having at least 1 amino-reactive functionality. The grafted and/or endcapped monomer or polymer can subsequently be processed to prepare a highly crosslinked network.
    Type: Grant
    Filed: October 16, 1987
    Date of Patent: January 3, 1989
    Assignee: The Dow Chemical Company
    Inventors: Kenneth J. Bruza, Robert A. Kirchhoff
  • Patent number: 4766199
    Abstract: Secondary amine-terminated aromatic oligomers are prepared by conventional reactions for the formation of such polymers as polyimides, polyethersulfones and polyetherketones, using such compounds as methylamino or phenylamino anilines or phenols as endcapping agents. The secondary amine-terminated oligomers may be reacted with cyclic polycarbonate oligomers to prepare copolyurethanecarbonates which are useful as engineering thermoplastics.
    Type: Grant
    Filed: February 17, 1987
    Date of Patent: August 23, 1988
    Assignee: General Electric Company
    Inventors: Tohru Takekoshi, Patricia P. Anderson
  • Patent number: 4746718
    Abstract: Diamines of the structure ##STR1## Wherein X is --SO.sub.2 -- or --CO--, Y is O or S, and Ar is a linear aryl ether moiety comprising from 1 to 80 aryl rings, are epoxy resin curing agents providing cured resins with improved moisture resistance and toughness. The resins are particularly useful in preparing prepregs and composites.
    Type: Grant
    Filed: April 6, 1987
    Date of Patent: May 24, 1988
    Assignee: Amoco Corporation
    Inventors: Hugh C. Gardner, Linda A. Domeier
  • Patent number: 4691059
    Abstract: This invention describes UV-stabilized step growth polymers such as polyesters, polyurethanes, polycarbonates, and combinations thereof. The UV-stabilizing moieties present in these polymers comprise chemically bound, pendant ortho-hydroxydiphenyl ketone based moieties. The polymers are especially useful as protective films and fibers which are highly resistant to ultraviolet (UV) and sunlight degradation.
    Type: Grant
    Filed: August 30, 1985
    Date of Patent: September 1, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Sumita B. Mitra, Smarajit Mitra
  • Patent number: 4568695
    Abstract: Novel 2-amino-3-benzoylphenethylalcohols are provided having the formula: ##STR1## wherein; X is hydrogen, loweralkyl, loweralkoxy, halogen or trifluoromethyl, andY is hydrogen, loweralkyl, loweralkoxy, halogen, trifluoromethyl, --S--loweralkyl, ##STR2## The compounds exhibit anti-inflammatory activity.
    Type: Grant
    Filed: December 7, 1983
    Date of Patent: February 4, 1986
    Assignee: A. H. Robins Company, Incorporated
    Inventors: Henry W. Moran, William J. Welstead, Jr.
  • Patent number: 4560800
    Abstract: A process for the preparation and recovery of m,m'-dinitrobenzophenone and which comprises reacting benzophenone with nitric acid in oleum; adjusting the reaction product to a water content from 12 to 30 weight percent; and extracting the m,m'-dinitrobenzophenone with a chlorinated hydrocarbon solvent.
    Type: Grant
    Filed: September 17, 1984
    Date of Patent: December 24, 1985
    Assignee: Gulf Research & Development Co.
    Inventors: Kiran R. Bakshi, Adrian D'Souza, Edward T. Sabourin
  • Patent number: 4550208
    Abstract: 4,4'-diaminobenzophenones of the formula I ##STR1## where the rings A and B can be further substituted, are prepared by a process in which a compound of the formula II ##STR2## where the rings A, B and E can be substituted, is oxidized with aqueous nitric acid in the presence of nitrobenzene or of an alkanoic acid and under superatmospheric pressure, and the reaction product is cleaved.The process according to the invention gives the compounds of the formula I in high yield and purity.
    Type: Grant
    Filed: November 21, 1984
    Date of Patent: October 29, 1985
    Assignee: BASF Aktiengesellschaft
    Inventors: Walter Disteldorf, Wolfgang Eisfeld, Rolf-Dieter Kohler
  • Patent number: 4440940
    Abstract: This disclosure describes 2- or 3-[(unsaturated or cyclopropylated alkyl)amino]phenyl compounds and derivatives useful as hypolipidemic and antiatherosclerotic agents.
    Type: Grant
    Filed: November 19, 1981
    Date of Patent: April 3, 1984
    Assignee: American Cyanamid Company
    Inventor: Robert G. Shepherd
  • Patent number: 4404402
    Abstract: There are provided novel substituted aniline intermediates, useful in the synthesis of certain substituted N-nitroanilines or salts thereof which may be used to elicit several desirable and advantageous biological responses in plants.
    Type: Grant
    Filed: March 4, 1982
    Date of Patent: September 13, 1983
    Assignee: American Cyanamid Company
    Inventors: David W. Ladner, Barrington Cross
  • Patent number: 4402975
    Abstract: A compound represented by the following formula ##STR1## wherein R.sup.1 represents a hydrogen atom, an acyl group or an alkoxycarbonyl group; X.sup.1 represents an alkylene group having 3 to 6 carbon atoms, a 1,4-cyclohexylene group, or a 1,4-phenylene group, the alkylene group may be substituted by an alkyl group having 1 to 6 carbon atoms, and the 1,4-phenylene group may be substituted by 1 or 2 substituents selected from halogen atoms and alkoxy groups having 1 to 6 carbon atoms; R.sup.2 represents a hydrogen atom or a hydroxyl group and R.sup.3 represents hydrogen atom, or R.sup.2 and R.sup.3 together may form an oxo group (.dbd.O), and when X.sup.1 is other than the 1,4-phenylene group, R.sup.2 represents a hydrogen atom and R.sup.3 represents a bond between the carbon atoms to which R.sup.3 is bonded and that carbon atom of X.sup.1 which is adjacent to said carbon atom; X.sup.
    Type: Grant
    Filed: July 17, 1981
    Date of Patent: September 6, 1983
    Assignee: Teijin Limited
    Inventors: Toru Takeshita, Kenji Hoshina, Akira Ohtsu, Tatsuyuki Naruchi
  • Patent number: 4393079
    Abstract: Anti-inflammatory compositions are prepared which comprise a therapeutically effective amount of a compound of the formula ##STR1## wherein X is CO or CHOH; Y is CO; the dotted line represents a double bond which is present or absent; R.sub.1 is hydrogen or methyl; R.sub.2 is hydrogen, fluorine, chlorine, bromine, methyl, trifluoromethyl, methoxyl, hydroxyl, acetoxyl, nitro or amino; R.sub.3 is alkyl of 3 to 8 carbon atoms, cycloalkyl of 3 to 8 carbon atoms, alkenyl of 3 to 8 carbon atoms, cycloalkenyl of 5 to 8 carbon atoms or phenyl unsubstituted or substituted by 1 or 2 substituents selected from the group consisting of fluorine, chlorine, bromine, methyl, ethyl, methoxyl, ethoxyl, benzyloyl, hydroxyl, acetoxyl, trifluoromethyl, nitro, amino, acetyl, methylthiol, methylsulphonyl, methylamino and dimethylamino. Compounds of formula I above are also novel.
    Type: Grant
    Filed: December 15, 1976
    Date of Patent: July 12, 1983
    Assignee: Beecham Group Limited
    Inventors: William G. Cole, Alexander C. Goudie, Carl J. Rose
  • Patent number: 4379765
    Abstract: There are presented compounds of the formulas ##STR1## wherein R.sub.1 is hydrogen or lower alkyl; R.sub.2 and R.sub.3 are selected from the group consisting of hydrogen, lower alkyl, C.sub.2 to C.sub.7 carboxylic acids, hydroxy C.sub.2 to C.sub.7 alkyl, C.sub.2 to C.sub.7 carboxylic acid esters and amides and the group COR.sub.11 wherein R.sub.11 is alkoxy, amino or mono- lower alkyl amino; R.sub.6 is nitro or halo and R.sub.5 is hydrogen or halo,and the pharmaceutically acceptable salts thereof.The pyrazolobenzazepines are useful as anxiolytic and sedative agents.Also provided are processes and intermediates in the production of the above pyrazolobenzazepines.
    Type: Grant
    Filed: July 23, 1981
    Date of Patent: April 12, 1983
    Assignee: Hoffmann-La Roche Inc.
    Inventors: George F. Field, Rodney I. Fryer, Eugene J. Trybulski, Armin Walser
  • Patent number: 4374773
    Abstract: There are presented compounds of the formula ##STR1## wherein R.sup.1 is a hydrogen atom or a lower alkyl group, R.sup.2 and R.sup.3 each are a hydrogen atom or a lower alkyl group, R.sup.4 is a halogen atom and either R.sup.5 is a hydrogen atom or a lower alkyl group and R.sup.6 is a lower alkyl or lower hydroxyalkyl group or R.sup.5 and R.sup.6 together with the nitrogen atom to which they are attached are a 3-membered to 7-membered heterocycle,and pharmaceutically acceptable acid addition salts thereof.The compounds and their salts are novel and possess valuable pharmacodynamic properties.
    Type: Grant
    Filed: January 16, 1981
    Date of Patent: February 22, 1983
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Quirico Branca, Albert E. Fischli, Andre Szente
  • Patent number: 4374984
    Abstract: Compounds of the formula ##STR1## wherein the substituents A, Z, R.sup.1, R.sup.2, R.sup.3, R.sup.4, X, n and m are defined hereinbeloware effective photoinitiators, especially for the photopolymerization of ethylenically unsaturated compounds and for the curing of printing inks.
    Type: Grant
    Filed: March 4, 1981
    Date of Patent: February 22, 1983
    Assignee: Merck Patent Gesellschaft mit Beschrankter Haftung
    Inventors: Jurgen Eichler, Claus Herz, Karl-Heinz Neisius, Gregor Wehner
  • Patent number: 4371546
    Abstract: Described are compounds of the formula ##STR1## wherein R is hydrogen, loweralkyl, aminomethyl or halo, R.sub.1 is hydroxy or NHX where X is H, loweralkyl, phenyl, substituted phenyl, acetyl, benzyl and substituted benzyl, and Y is hydrogen, loweralkyl or halo and may be the same or different, and pharmaceutically acceptable salts thereof.The compounds are effective as diuretic agents.
    Type: Grant
    Filed: October 9, 1981
    Date of Patent: February 1, 1983
    Assignee: Abbott Laboratories
    Inventors: Jacob J. Plattner, Andre G. Pernet, Anthony K. Fung
  • Patent number: 4370501
    Abstract: A simplified process for converting bis-phenols to dianilines is disclosed. Selected catalytic complexes are used to cause a nucleophilic displacement reaction between a bis-phenol and a quinazoline to occur thereby yielding a bis-quinazoline that may be subsequently converted into a bis-quinazolinone and hydrolyzed to form the desired dianiline.
    Type: Grant
    Filed: October 5, 1981
    Date of Patent: January 25, 1983
    Assignee: Hughes Aircraft Company
    Inventor: Kreisler S. Y. Lau
  • Patent number: 4312996
    Abstract: A compound of the formula ##STR1## wherein X and Y are independently selected from hydrogen, halogen, trifluoromethyl, nitro, C.sub.1 to C.sub.6 alkyl and C.sub.1 to C.sub.6 alkoxy, and Z is C.sub.1 to C.sub.6 alkyl or hydrogen is disclosed.
    Type: Grant
    Filed: December 29, 1980
    Date of Patent: January 26, 1982
    Assignee: Schering Corporation
    Inventors: Joseph Mayer, Lydia Peer, Esther Babad