Two Diazole Rings Are Bonded Directly To Each Other, To The Same Acyclic Carbon Atom Or To The Same Acyclic Carbon Chain Patents (Class 548/365.4)
  • Bis pyrazole-1H-pyrazole intermediates and their synthesis
    Patent number: 6492529
    Abstract: Disclosed are aromatic heterocyclic compounds of the formula (I) wherein Ar1, Ar2, L, Q and X are described herein, and intermediate compounds useful for making such compounds. The compounds are useful in pharmaceutic compositions for treating diseases or pathological conditions involving inflammation such as chronic inflammatory diseases. Also disclosed are processes of making compounds of the formula (I), their intermediates and processes of making such intermediates, including bis pyrazole-1H-pyrazole intermediates of the formula: wherein Alk, Rx and Rz are described herein.
    Type: Grant
    Filed: February 5, 2002
    Date of Patent: December 10, 2002
    Assignee: Boehringer Ingelheim Pharmaceuticals, Inc.
    Inventors: Suresh R. Kapadia, Jinhua J. Song, Nathan K. Yee
  • Bridged diaminopyrazole compounds and dye compositions containing same
    Publication number: 20020170125
    Abstract: The new diaminopyrazole compounds are bridged 4,5-diaminopyrazole compounds or salts thereof.
    Type: Application
    Filed: December 14, 2001
    Publication date: November 21, 2002
    Inventors: Otto Goettel, Aline Pirrello, Andre Hayoz, Emmanuel Morand
  • Pyrazolone compounds and ophthalmic plastic lens using the same
    Patent number: 6310215
    Abstract: Provided are novel pyrazolone compounds which have excellent copolymerizability and undergo no elution in an organic solvent when used for an ophthalmic plastic lens and which have an excellent absorption peak in visible light region and function as a reactive yellow dye.
    Type: Grant
    Filed: April 4, 2000
    Date of Patent: October 30, 2001
    Assignee: Hoya Healthcare Corporation
    Inventor: Hidetoshi Iwamoto
  • 1-Methyl-5-alkylsulfonyl-, 1-methyl-5-alkylsulfinyl- and 1-methyl-5-alkylthio- substituted pyrazolylpyrazoles, processes for their preparation and their use as herbicides
    Patent number: 6232271
    Abstract: 1-Methyl-5-alkylsulfonyl-, 1-methyl-5-alkylsulfinyl- and 1-methyl-5-alkylthio-substituted pyrazolylpyrazoles, processes for their preparation and their use as herbicides 1 -Methyl-5-alkylsulfonyl-, 1-methyl-5-alkylsulfinyl- and 1-methyl-alkylthio-substituted pyrazolylpyrazoles of the formula (I) are described as herbicidally active compounds. In this formula (I), R1 and R4 are various substituents, R2 is halogen or cyano, R3 is cyano, nitro or thiocarbamoyl and n is 0, 1 or 2.
    Type: Grant
    Filed: November 20, 1998
    Date of Patent: May 15, 2001
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Alfred Angermann, Helga Franke, Rainer Preuss, Uwe Hartfiel, Holger Wagner, Hermann Bieringer, Thomas Auler, Christopher Rosinger