Chalcogen Bonded Directly To Ring Carbon Of The Hetero Ring Patents (Class 549/36)
  • Patent number: 8945769
    Abstract: An electricity storage device including a positive electrode 31, a negative electrode 32, and an electrolytic solution 29 located between the positive electrode and the negative electrode. At least one of the positive electrode 31 and the negative electrode 32 contains an electricity storage material containing a polymerization product having a tetrachalcogenofulvalene structure in a repeat unit of a main chain.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: February 3, 2015
    Assignee: Panasonic Corporation
    Inventors: Nobuhiko Hojo, Yu Ohtsuka, Takakazu Yamamoto, Takahisa Shimizu, Takayuki Sasaki, Tomoaki Yanagida
  • Patent number: 8946450
    Abstract: The present invention relates to substituted pterin compounds, their synthesis and use. In particular, the present invention relates to a new precursor compound and its analogs for synthesizing a new substituted pterin compound and its analogs. These new compounds are particularly suitable for treating molybdenum cofactor deficiency.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: February 3, 2015
    Assignee: Duquesne University of the Holy Ghost
    Inventors: Partha Basu, Igor Pimkov
  • Publication number: 20130288985
    Abstract: This application discloses pharmaceutical compositions (e.g., oral, parenteral or topical ophthalmic formulations) for treating Fuchs endothelial corneal dystrophy (FECD) with one or more Nrf2 activators and/or mitochondrially targeted antioxidants. The compositions may be topically administered to the eye and are effective in the treatment of FECD. The invention further provides methods of treating FECD by in a subject in need of such treatment by topical application of one or more Nrf2 activators and/or mitochondrially of the invention.
    Type: Application
    Filed: June 30, 2011
    Publication date: October 31, 2013
    Applicant: The Schepens Eye Research Institute Inc.
    Inventor: Ula V. Jurkunas
  • Publication number: 20110306531
    Abstract: Novel sulfur-containing compositions comprise a polyether polysulfide or an ether polysulfide. The polyether polysulfide may be based upon an alkoxylate (an alcohol or glycol-initiated compound) that is a copolymer of at least two of ethylene oxide, propylene oxide and butylene oxide. The polyether polysulfide may alternatively be based upon a homopolymer of ethylene oxide, propylene oxide or butylene oxide. The ether polysulfide may be based upon a methoxy-capped polyglycol or an alkyl ether of 1,3-dichloro-2-propanol.
    Type: Application
    Filed: June 3, 2011
    Publication date: December 15, 2011
    Inventors: Yang Cheng, Cynthia L. Rand, John B. Cuthbert
  • Publication number: 20110152524
    Abstract: Provided is a pharmaceutical composition that contains a 1,2-dithiolthionederivative, and is effective to prevent and treat a disease caused by overactivity of a liver X receptor? (LXR?) or a sterol response element binding protein (SREBP-1). Specifically, the pharmaceutical composition includes 1,2-dithiolthione derivatives such as 4-methyl-5-(2-pyrazinyl)-1,2-dithiol-3-thione, 3-methyl-1,2-dithiol-3-thione, or 5-(6-methoxypyrazinyl)-4-methyl-1,2-dithiol-3-thione. The pharmaceutical composition is effective for preventing and treating hypertension caused by renin, aldosteronism, adrenoleukodystrophy, glomerulosclerosis, proteinuria, nephropathy, liver steatosis, hypertriglyceridemia or hyperreninemia.
    Type: Application
    Filed: July 30, 2009
    Publication date: June 23, 2011
    Applicant: SNU R&DB FOUNDATION
    Inventors: Sang Geon Kim, Sung Hwan Ki, Seong Hwan Hwang
  • Patent number: 7910568
    Abstract: The present invention provides new derivatives of 4- or 5-aminosalicylic acid, and a pharmaceutical composition containing these derivatives of 4- or 5-aminosalicylic acid as active ingredients, useful for the treatment of intestinal diseases such as inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS) and for the prevention/treatment of colon cancer. More particularly, these derivatives comprise a hydrogen sulfide releasing moiety linked via an azo, an ester, an anhydride, a thioester or an amide linkage to a molecule of 4- or 5-aminosalicylic acid. Furthermore, the present invention provides a process for preparing these compounds and their use for treating IBD and IBS and the prevention/treatment of colon cancer.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: March 22, 2011
    Assignee: Antibe Therapeutics Inc.
    Inventors: John L. Wallace, Giuseppe Cirino, Giuseppe Caliendo, Anna Sparatore, Vincenzo Santagada, Stefano Fiorucci
  • Patent number: 7781592
    Abstract: A 1,2,4-triazole derivative of formula 1 or a non-toxic salt thereof, a preparation method thereof, and a pharmaceutical composition containing the derivative or the salt as an active ingredient are provided.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: August 24, 2010
    Assignee: CJ Cheiljedang Corporation
    Inventors: Il Hwan Cho, Myeong Yun Chae, Young Hoon Kim, Kyu Jeong Yeon, Chun Seon Lyu, Jong Hoon Kim, Sung Hak Jung, Sang Wook Park, Hyung Chul Ryu, Ji Young Noh, Hyun Jung Park, Jie Eun Park, Young Mee Chung
  • Patent number: 7763884
    Abstract: An organic semiconductor material represented by the following general formula (1): wherein X1 to X4 each independently represent a chalcogen atom; and at least one of R1 and R2 represents a substituent for obtaining solubility, and R1 and R2 may be connected to each other to form a ring.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: July 27, 2010
    Assignee: Sony Corporation
    Inventors: Mao Tatsuhara, Akito Ugawa
  • Patent number: 7498355
    Abstract: The present invention provides new derivatives of 4- or 5-aminosalicylic acid, and a pharmaceutical composition containing these derivatives of 4- or 5-aminosalicylic acid as active ingredients, useful for the treatment of intestinal diseases such as inflammatory bowel disease (IBD) and irritable bowel syndrome (IBS) and for the prevention/treatment of colon cancer. More particularly, these derivatives comprise a hydrogen sulfide releasing moiety linked via an azo, an ester, an anhydride, a thioester or an amide linkage to a molecule of 4- or 5-aminosalicylic acid. Furthermore, the present invention provides a process for preparing these compounds and their use for treating IBD and IBS and the prevention/treatment of colon cancer.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: March 3, 2009
    Assignee: Antibe Therapeutics Inc.
    Inventors: John L. Wallace, Giuseppe Cirino, Giuseppe Caliendo, Anna Sparatore, Vincenzo Santagada, Stefano Fiorucci
  • Patent number: 7385067
    Abstract: The invention relates to a process for the preparation of compounds containing at least one —CF2—O— bridge in the molecule, in which a) an acid is added onto at least one ketene dithioketal, b) the resultant bis(alkylthio)carbenium salt is reacted with at least one compound having at least one hydroxyl group in the presence of a base, c) and subsequently, preferably in situ, the resultant dithioorthoester is subjected to oxidative fluorodesulfurisation using a fluorinating agent and an oxidant to give the compound containing at least one —CF2—O— bridge in the molecule.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: June 10, 2008
    Assignee: Merck Patent GmbH
    Inventors: Peer Kirsch, Andreas Taugerbeck, Alexander Hahn
  • Patent number: 7285664
    Abstract: A compound having a formula selected from the group consisting of wherein the substituents are as defined in the specification. The compounds are useful as intermediates in the preparation of compounds of formula (I), which are useful for inhibiting NO synthase and regenerate antioxidants.
    Type: Grant
    Filed: June 8, 2005
    Date of Patent: October 23, 2007
    Assignee: S.C.R.A.S. Societe de Conseils de Recherches et d'Applications Scientifiques
    Inventors: Jeremiah Harnett, Michel Auguet
  • Patent number: 7169324
    Abstract: Disclosed herein are a gelling agent composed of a functional amino acid compound having a tetrathiafulvalenyl group, and a production method of a gelling agent, comprising reacting a tetrathiafulvalene derivative with an amino acid derivative in the presence of 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide hydrochloride and 4-(N,N-dimethylamino)pyridine to obtain a functional amino acid compound having a tetrathiafulvalenyl group.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: January 30, 2007
    Assignee: JSR Corporation
    Inventors: Takashi Kato, Tetsu Kitamura, Norihiro Mizoshita, Yusuke Tochigi
  • Patent number: 7038062
    Abstract: This invention provides a low cost technique for synthesizing cyclic trithiocarbonates by a simple one step process from epoxides that can be conducted under atmospheric pressure. This synthesis can be depicted as follows: wherein R represents a moiety selected from the group consisting of alkyl groups and aryl groups, wherein R? represents a moiety selected from the group consisting of alkyl groups, aryl groups, and hydrogen atoms, and wherein R? represents a moiety selected from the group consisting of alkyl groups, aryl groups, and hydrogen atoms, wherein the R moiety and the R? moiety can be bonded together to form a cyclic structure, with the proviso that R? represents a hydrogen atom if R? represents an alkyl group or an aryl group. In this process carbon disulfide and a thiocyanate salt, such as potassium thiocyanate, are reacted with the epoxide in an ionic liquid, such as 1-butyl-3-methylimidazolium hexafluorophosphate ([Bmim] PF6) in the presence of water to produce the cyclic trithiocarbonate.
    Type: Grant
    Filed: July 1, 2004
    Date of Patent: May 2, 2006
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: Dane Kenton Parker
  • Patent number: 7012148
    Abstract: Compositions and methods for using these compositions to produce high yields of thionated compounds are provided.
    Type: Grant
    Filed: September 25, 2001
    Date of Patent: March 14, 2006
    Assignee: Trustees of Dartmouth College
    Inventor: Thomas J. Curphey
  • Patent number: 6787062
    Abstract: The invention relates to a process for the preparation of compounds having at least one —CF2O— bridge in the molecule, which comprises initially reacting a bis(alkylthio)carbenium salt with a compound containing at least one hydroxyl group in the presence of a base followed by oxidative fluorination, preferably in situ, with a fluorinating agent and an oxidizing agent to form the compound having at least one —CF2O— bridge in the molecule.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: September 7, 2004
    Assignee: Merck Patent GmbH
    Inventors: Peer Kirsch, Andreas Taugerbeck, Detlef Pauluth, Matthias Bremer
  • Publication number: 20030181494
    Abstract: Novel diphenylethylene compounds and derivatives thereof containing thiazolidinedione or oxazolidinedione moieties are provided which are effective in lowering blood glucose level, serum insulin, triglyceride and free fatty acid levels in animal models of Type II diabetes. The compounds are disclosed as useful for a variety of treatments including the treatment of inflammation, inflammatory and immunological diseases, insulin resistance, hyperlipidemia, coronary artery disease, cancer and multiple sclerosis.
    Type: Application
    Filed: October 8, 2002
    Publication date: September 25, 2003
    Inventors: Partha Neogi, Debendranath Dey, Satyanarayana Medicherla, Bishwajit Nag, Arthur Lee
  • Publication number: 20030176714
    Abstract: Compositions and methods for using these compositions to produce high yields of thionated compounds are provided.
    Type: Application
    Filed: May 9, 2003
    Publication date: September 18, 2003
    Inventor: Thomas J. Curphey
  • Patent number: 6074744
    Abstract: The inventive Langmuir-Blodgett film is made of an amphiphilic organic carboxylic acid, such as a long chain fatty acid, and a tetrathiafulvalene derivative having no long chain alkyl group. For example, the long chain fatty acid comprises behenic acid, and the tetrathiafulvalene derivative comprises 4,5-ethylenedioxy-4',5'-ethylenedithio-tetrathiafulvalene or bis-ethylenedioxy-tetrathiafulvalene. Such Langmuir-Blodgett film comprises uniform and well-ordered layered structure, may be readily produced and may exhibit a high electrical conductivity.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: June 13, 2000
    Assignee: Tokyo University of Mercantile Marine
    Inventors: Hitoshi Ohnuki, Mitsuru Izumi
  • Patent number: 6046228
    Abstract: The present invention is directed to pharmaceutical compositions including a saturated 1,2-dithiaheterocyclic compound having antiviral activity. The present invention also provides a kit containing the pharmaceutical composition and methods of treating or preventing viral disease using the composition, as well as methods for inactivating retrovirus in a body fluid.
    Type: Grant
    Filed: January 4, 1999
    Date of Patent: April 4, 2000
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: William G. Rice, Robert R. Schultz, David C. Baker, Louis E. Henderson
  • Patent number: 5817837
    Abstract: A tetrathiafulvalene derivative precursor represented by formula (1), a tetrathiafulvalene derivative represented by formula (6), and processes for producing the tetrathiafulvalene derivative precursor and the tetrathiafulvalene derivative: ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and represent organic groups that may be linked together to form a ring.
    Type: Grant
    Filed: September 21, 1993
    Date of Patent: October 6, 1998
    Assignee: Sumitomo Electric Industries, Ltd.
    Inventors: Harald Dietmar Muller, Yoshinobu Ueba
  • Patent number: 5693460
    Abstract: This invention provides a silver halide photographic element comprising a silver halide emulsion in reactive association with a dioxide compound represented by the following formula: ##STR1## wherein b is C(O), C(S), C(Se), CH2 or (CH2)2; and R.sup.1 and R.sup.2 are independently H, or aliphatic, aromatic or heterocyclic groups, or R.sup.1 and R.sup.2 together represent the atoms necessary to form a five or six-membered ring or a multiple ring system. This invention further provides a method of making silver halide emulsions containing the dioxide compounds.
    Type: Grant
    Filed: June 24, 1996
    Date of Patent: December 2, 1997
    Assignee: Eastman Kodak Company
    Inventor: Roger Lok
  • Patent number: 5631277
    Abstract: Disclosed is (2-thione-1,3-dithiole 4,5-diyl) bis(thiocyanate), its preparation and its use as an antimicrobial and marine antifouling agent.
    Type: Grant
    Filed: July 10, 1996
    Date of Patent: May 20, 1997
    Assignee: The Dow Chemical Company
    Inventors: Duane R. Romer, Weishi W. Wu, Ravi B. Shankar, R. Garth Pews
  • Patent number: 5618835
    Abstract: A compound having the structure: ##STR1## pharmaceutical compositions comprising such compounds, and methods of treating inflammation or pain using such compounds.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: April 8, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Laurence I. Wu, John M. Janusz
  • Patent number: 5530141
    Abstract: 2,4-Diaryl-1,3-dithiolanes; 2,4-diaryl-1,3-dioxolanes; 2,4-diaryl-1,3-oxathiolanes; and 2,5-diaryl-1,3-oxathiolanes are disclosed that reduce the chemotaxis and respiratory burst leading to the formation of damaging oxygen radicals of polymorphonuclear leukocytes during an inflammatory or immune response. The compounds exhibit this biological activity by acting as PAF receptor antagonists, by inhibiting the enzyme 5-lipoxygenase, or by exhibiting dual activity, i.e., by acting as both a PAF receptor antagonist and inhibitor of 5-lipoxygenase.A method to treat disorders mediated by PAF or leukotrienes is also disclosed, that includes administering an effective amount of one or more of the above-identified compounds or a pharmaceutically acceptable salt thereof, optionally in a pharmaceutically acceptable carrier.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: June 25, 1996
    Assignee: Center for Innovative Technology
    Inventors: T. Y. Shen, David M. Goldstein
  • Patent number: 5466806
    Abstract: Disclosed are processes for preparing compounds of the formula (I) and pharmaceutically acceptable salts or esters thereof: ##STR1## wherein R.sub.2 is a purine or pyrimidine base or an analogue or derivative thereof; and Z is S, S.dbd.O or SO.sub.2. The invention also relates to intermediates of use in the preparation of these compounds.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: November 14, 1995
    Assignee: Biochem Pharma Inc.
    Inventors: Bernard Belleau, deceased, Tarek Mansour, Allan Tse, Colleen A. Evans, Haolun Jin, Boulos Zacharie, Nghe Nguyen-Ba
  • Patent number: 5237067
    Abstract: This application is directed to optoelectronic materials which are bistable organic tautomeric compositions of dithio or diseleno carbamate esters of cyclic 1,3-dithia or -diselena-2-iminium salts. Specifically, it is concerned with compounds having the formula: ##STR1## Wherein X is S or Se; wherein R or R.sub.1 are alkyl, or alkyl that together form a ring of carbon atoms; wherein An is the anion of a strong acid. These molecules are in themselves molecular-sized optoelectric switching devices.
    Type: Grant
    Filed: February 4, 1992
    Date of Patent: August 17, 1993
    Inventor: Robert R. Schumaker
  • Patent number: 5175280
    Abstract: A thia- and/or selenafulvalenyl group-containing compound of the formula (I), ##STR1## wherein each of X.sub.1, X.sub.2, X.sub.3, X.sub.4, X'.sub.1, X'.sub.2, X'.sub.3 and X'.sub.4 is independently S or Se, Y is an electron donating or electron accepting group having a size which is not so large as to prevent molecular overlapping, m is an integer of 0 to 4, each of Z.sub.1, Z.sub.2, Z'.sub.1 and Z'.sub.2 is independently a hydrogen atom, C.sub.n H.sub.2n+1 in which n is an integer of 1 to 5, or alternatively, a combination of Z.sub.1 with Z.sub.2 and Z'.sub.1 with Z'.sub.2 is C.sub.n H.sub.2n in which n is an integer of 1 to 5, or X(C.sub.n H.sub.2n).sub.n', X in which X is S or Se and n' is an integer of 1 to 3, and each of R.sub.1, R.sub.2, R.sub.3, R'.sub.1, R'.sub.2 and R'.sub.3 is independently a hydrogen atom or C.sub.n H.sub.2n+1 in which n is an integer of 1 to 5. The compound has an electron donating nature and can be used to make electrically conductive complexes.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: December 29, 1992
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Makoto Mizutani, Kazushige Kawabata, Keiji Tanaka
  • Patent number: 4927845
    Abstract: Anthralin analogues containing a thio-substituent, especially in one or more of the positions 2-, 7- and 10- of the anthralin ring. They may be made by reacting an anthralin derivative (e.g. 10-bromoanthralin) with a thiol or a compound containing a group convertible to a thio-group. Alternatively, a 1,8-dihydroxy anthraquinone containing a thio-substituent may be reduced. Reactive intermediates may be made by introducing one or more nuclear allylic groups into a 1,8-dihydroxy anthraquinone and then converting them into a reactive form, e.g. by epoxidation or halide addition. The intermediate can then reduced to the oxidation state corresponding to anthralin.Additional products having the 10-carbon atom of the anthralin ring as part of a heterocyclic ring, may be made by anthralins containing various substitutes thioalkyl groups as the 10-substituent.The compounds are useful for treatment of psoriasis, and may be formulated in the conventional vehicles for topical application, for example petrolatum.
    Type: Grant
    Filed: August 15, 1989
    Date of Patent: May 22, 1990
    Assignee: The Victoria University of Manchester
    Inventor: John M. Bruce
  • Patent number: 4900842
    Abstract: The invention pertains to organic compounds of the tetrahiafulvalene type made amphiphillic by substitution of the radicals R.sup.1 and R.sup.2 meeting one of the following conditions:R.sup.1 is a hydrophilic group and R.sup.2 is a hydrophobic group,R.sup.1 is a hydrophobic group and R.sup.2 is a hydrophilic group,R.sup.1 is an aromatic group and R.sup.2 is a group having a long carbon-containing chain with a hydrophobic nature and a hydrophilic end.These organic compounds can form Langmuir-Blodgett films which are made anisotropically conductive by doping.
    Type: Grant
    Filed: February 9, 1988
    Date of Patent: February 13, 1990
    Assignee: Thomson-CSF
    Inventors: Philippe Robin, Albert Robert, Francoise Bertho, Patrick Batail
  • Patent number: 4763966
    Abstract: An infrared absorbent comprising a metal complex compound prepared by coordinating two thiorato bidentate ligands to a center metal and neutralizing a complex ion with a cation. With use of the infrared absorbent, there is provided an infrared absorbing material capable of absorbing a far-infrared or near-infrared light having a wavelength of 700-1500 nm which has a high transmittance of a visible light and a good fastness to heat and light. The infrared absorbing material can be used for an infrared absorbing material such as an optical filter or other various objects.
    Type: Grant
    Filed: July 15, 1985
    Date of Patent: August 16, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshiaki Suzuki, Gouichi Hayashi
  • Patent number: 4760078
    Abstract: A novel 1,2-dithiol-3-thione derivative which has an immunomodulating property, which is expressed by the formula (I): ##STR1## wherein R denotes hydrogen, halogen, lower alkoxy group, lower alkyl group, amino group, lower alkyl-substituted amino group or lower alkoxycarbonyl group.
    Type: Grant
    Filed: March 5, 1987
    Date of Patent: July 26, 1988
    Assignee: Mitsui Toatsu Chemicals Inc.
    Inventors: Itaru Yamamoto, Akira Matsubara, Kanji Tomiya, Osamu Mizuno, Mitsuhiro Sakaguchi, Mikio Kumakura
  • Patent number: 4691028
    Abstract: A fulvalene derivative represented by formula (1) below. ##STR1## where A.sup.1 -A.sup.8 are at least one atom or a combination of two or more atoms selected from S atom, Se atom, and Te atom; and R.sup.1 -R.sup.4 are alkyl or alkene having 3 to 22 carbon atoms.The fulvalene derivative of this invention has electric conductivity as it is at normal temperature and under normal pressure. It is useful as a semiconductor, which has an electrical conductance greater than 10.sup.-9 Scm.sup.-1 and a minimum specific resistance of 10.sup.5 .OMEGA..multidot.cm order.
    Type: Grant
    Filed: April 23, 1986
    Date of Patent: September 1, 1987
    Assignee: Ajinomoto Co., Inc.
    Inventors: Hiroo Inokuchi, Gunji Saito, Kazuhiko Seki, Takehiko Mori
  • Patent number: 4638064
    Abstract: Unsaturated heterocyclic carbonyl-containing compounds, such as 2-oxathiolone, are prepared by the oxylation of saturated heterocyclic carbonyl-containing precursors of the above compounds in a C.sub.1-4 alcohol or carboxylic acid solvent in the presence of a supporting electrolyte followed by dehydroxylation of the oxylated intermediate.The products formed may be polymerized or copolymerized with other ethylenically unsaturated monomers to prepared resins, films, etc. or they may be employed as reaction intermediates.
    Type: Grant
    Filed: April 1, 1985
    Date of Patent: January 20, 1987
    Assignee: The Dow Chemical Company
    Inventors: Pen-Chung Wang, James M. Renga
  • Patent number: 4602095
    Abstract: Novel 3-hydroxy-4-alkyloxphenyl heterocyclic aromatic carboxylate compounds particularly well suited as sweeteners in foodstuff.
    Type: Grant
    Filed: December 29, 1983
    Date of Patent: July 22, 1986
    Assignee: General Foods Corporation
    Inventors: Paul R. Zanno, Ronald E. Barnett, Jed A. Riemer
  • Patent number: 4578220
    Abstract: A novel charge transfer complex of an N,N'-biscyanoquinone bisimine of the formula ##STR1## and a fulvalene derivative of the formula ##STR2## where, in formula I, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another are --H, --CH.sub.3, --C.sub.2 H.sub.5, --OCH.sub.3, --OC.sub.2 H.sub.5, --Cl and/or --Br, and one of the radicals R.sup.1 and R.sup.2 and/or one of the radicals R.sup.3 and R.sup.4 may furthermore be phenyl or tert.-butyl, or R.sup.1 and R.sup.2 and/or R.sup.3 and R.sup.4 together form ##STR3## and the fused-on aromatic ring is unsubstituted or substituted, and, in formula (II), R.sup.5, R.sup.6, R.sup.7 and R.sup.8 independently of one another are each --H, --CH.sub.3, --C.sub.2 H.sub.5, phenyl, methylphenyl or methoxyphenyl, or R.sup.5 and R.sup.6 and/or R.sup.7 and R.sup.8 together form ##STR4## where n=3, 4 or 5, ##STR5## and X and Y indendently of one another are each S or Se.
    Type: Grant
    Filed: October 18, 1984
    Date of Patent: March 25, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Siegfried Huenig, Alexander Aumueller
  • Patent number: 4517010
    Abstract: There is provided a new class of derivatives of 2-nitro-5-(substituted-phenoxy) benzoyl compounds that have pre- and post-emergence herbicidal activity. The derivatives include certain substituted phenyl esters, phenyl thioesters; heterocyclic esters; substituted alkyl and alkylthio esters; carbonates and thiocarbonates; benzoyl phosphonates; substituted alkanones and substituted amides.
    Type: Grant
    Filed: April 15, 1983
    Date of Patent: May 14, 1985
    Assignee: Rhone-Poulenc Inc.
    Inventor: Robert J. Theissen
  • Patent number: 4511464
    Abstract: The invention is a process of concentrating sulfide ores, which comprises subjecting a sulfide ore, in the form of a pulp, to a flotation process in the presence of a flotation collector for the sulfides comprising a 1,3-oxathiolane-2-thione or a 1,3-dithiolane-2-thione.
    Type: Grant
    Filed: July 22, 1983
    Date of Patent: April 16, 1985
    Assignee: The Dow Chemical Company
    Inventor: Roger W. Bergman
  • Patent number: 4450217
    Abstract: Novel chalcogenopentalene compounds having a tellurium atom in the 6a position, and methods of making chalcogenopentalenes having a tellurium or a selenium atom in the 6a position are disclosed. The chalcogenopentalene compounds are useful as sensitizers in electrophotographic compositions and elements containing an electron donor and as charge emitters in multilayer photoconductive elements.
    Type: Grant
    Filed: March 15, 1983
    Date of Patent: May 22, 1984
    Assignee: Eastman Kodak Company
    Inventors: Michael R. Detty, Jerome H. Perlstein
  • Patent number: 4447623
    Abstract: An improved process for preparation of 4,5-dichloro-1,2-dithia-cyclopenten-3-one of the formula ##STR1## by reacting hexachloroprene with sulphur at elevated temperatures, wherein the improvement comprises hydrolyzing by-product sulphur chlorides by conducting the reaction in the presence of water.
    Type: Grant
    Filed: September 24, 1982
    Date of Patent: May 8, 1984
    Assignee: Cassella Aktiengesellschaft
    Inventors: Rolf Muller, Herbert Wille
  • Patent number: 4315027
    Abstract: A novel class of chemical compounds useful as pesticides consists of symmetrical and asymmetrical N,N'-sulfinyldicarbamate esters. The preparation of these compounds and their formulation to control insects are exemplified.
    Type: Grant
    Filed: May 9, 1980
    Date of Patent: February 9, 1982
    Assignee: The Regents of the University of California
    Inventors: Mohamed A. H. Fahmy, Tetsuo R. Fukuto
  • Patent number: 4264625
    Abstract: Bis-[N-Alkyl-N-arylcarbamate] sulfide compounds exhibit outstanding miticidal and insecticidal activity, coupled with substantially reduced mammalian toxicity, and phytotoxicity.
    Type: Grant
    Filed: October 26, 1978
    Date of Patent: April 28, 1981
    Assignee: Union Carbide Corporation
    Inventor: Themistocles D. J. D'Silva
  • Patent number: 4190727
    Abstract: The process of reacting dithiolium compounds with an hydroxy compound such as water, alcohols, etc., under basic conditons so as to substitute the hydroxy constituent into the 3 or 5 position of the thiolium ring thus replacing the positive ionic valency with a covalent bond; and to the dithiole compositions formed and uses therefor, for example as corrosion inhibitors, etc. The process can be reversed to reform the original dithiolium compounds by reacting the dithiole compound under acidic conditions.
    Type: Grant
    Filed: May 13, 1976
    Date of Patent: February 26, 1980
    Assignee: Petrolite Corporation
    Inventor: Bernardus A. Oude Alink