Nitrogen Attached Directly To The Pentacyclo Ring System By Nonionic Bonding Patents (Class 546/59)
An additional ring is bonded directly to the nitrogen (Class 546/60)
  • Hot-Light Resistant Blue Dispersion Dyes
    Publication number: 20080189882
    Abstract: The present invention relates to dyes of the general formula I where R1 to R4 and Y are each as defined in claim 1, dye mixtures comprising same, processes for their preparation, and also their use for dyeing and printing hydrophobic synthetic materials.
    Type: Application
    Filed: May 30, 2006
    Publication date: August 14, 2008
    Applicant: DyStar Textifarben GmbH & Co. Deutschland
    Inventors: Hartwig Jordan, Andreas Endres
  • Optimized Determination of Voltage Changes Using a Voltage-Sensitive Dye
    Publication number: 20080122428
    Abstract: The present invention relates to a method of determining voltage changes, e.g. in cell membranes, by means of a voltage-sensitive dye.
    Type: Application
    Filed: June 25, 2004
    Publication date: May 29, 2008
    Applicant: Max-Planck-Gesellschaft zur Forderungder Wissenschaften e. V.
    Inventors: Bernd Kuhn, Winfried Denk, Gerd Hubener, Peter Fromherz
  • Conductive organopolysiloxane composition
    Patent number: 6156236
    Abstract: A conductive organopolysiloxane composition is provided which includes (A) 100 parts by weight of an organopolysiloxane; and (B) 0.1 to 800 parts by weight of a conductive material obtained by subjecting a member selected from the group consisting of a conductive metal, a conductive metal compound, a filler surface-treated with a conductive metal and a filler surface-treated with a conductive metal compound, to surface treatment with a compound selected from the group consisting of a compound represented by the formula (1) and a compound represented by the formula (2). ##STR1## wherein R.sup.1 represents --O-- or --NH--, and R.sup.2 represents a hydrogen atom or a phenyl group. This composition is useful for the formation of a silicone rubber having a sufficient electrical conductivity and also stably retainable of electrical conductivity almost without undergoing a change in electrical conductivity even in a high-temperature environment.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: December 5, 2000
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Osamu Hayashida, Takeo Yoshida, Toshihide Shimizu, Tamaki Iida
  • 1, 2-dihydro-3H-dibenzisoquinoline-1,3-dione anticancer agents
    Patent number: 5635506
    Abstract: This invention relates to a compound useful for the treatment of tumors having the formula: ##STR1##
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: June 3, 1997
    Assignee: Research Corporation Technologies, Inc.
    Inventors: David S. Alberts, Robert T. Dorr, William A. Remers, Salah M. Sami
  • Catalytically reductive ring closure for 1-acylamino-3,4-phthaloylacridones
    Patent number: 4384119
    Abstract: The present invention relates to an advantageous novel process for producing 1-acylamino-3,4-phthaloylacridones by a hydrogenating ring-closure reaction of 1-acylamino-4-anilidoanthraquinone-2'-carboxylic acid esters.The ring-closure reaction according to the invention to the acridone ring is performed under mild conditions, with regard to temperature and alkalinity of the reaction medium, with the use of a hydrogenating catalyst. The first step to effect the ester formation can be carried out, as a single-vessel reaction, with the use of a polar solvent as the reaction medium, and of an alkylphosphoric acid dialkyl ester as the esterifying agent.
    Type: Grant
    Filed: January 19, 1982
    Date of Patent: May 17, 1983
    Assignee: Ciba-Geigy Corporation
    Inventor: Maurice Grelat