Patents by Inventor Fritz Theil

Fritz Theil has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Piperidine-2,6-diones heterocyclically substituted in the 3-position
    Patent number: 7183274
    Abstract: Piperidine-2,6-diones heterocyclically substituted in the 3-position corresponding to formula I Also the production and use of such compounds in pharmaceutical formulations and related methods of treatment.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: February 27, 2007
    Assignee: Gruenenthal GmbH
    Inventors: Helmut Heinrich Buschmann, Stefanie Frosch, Tieno Germann, Oswald Karl Zimmer, Fritz Theil
  • Piperidine-2,6-diones heterocyclically substituted in the 3-position
    Publication number: 20050020581
    Abstract: Piperidine-2,6-diones heterocyclically substituted in the 3-position corresponding to formula I Also the production and use of such compounds in pharmaceutical formulations and related methods of treatment.
    Type: Application
    Filed: June 21, 2004
    Publication date: January 27, 2005
    Applicant: Gruenenthal GmbH
    Inventors: Helmut Buschmann, Stefanie Frosch, Tieno Germann, Oswald Zimmer, Fritz Theil
  • Method for kinetic resolution of racemates of alcohols having one or several stereogenic centers
    Publication number: 20030148481
    Abstract: The present intention relates to a method for kinetic resolution of racemates of alcohols with one or several stereogenic centers. The invention is particularly suitable for producing pharmaceutical agents or plant protective agents. According to the invention, first racemic alcohols are converted with fluorinated acylation agents into racemic fluorinated carboxylic acid esters. Subsequently, by lipase-catalyzed reaction of the racemic fluorinated carboxylic acid ester with alcohols the fluorous phase marking of the faster reacting enantiomer is canceled and that of the slower reacting enatiomer is maintained. Subsequently, the enantiomers are extractively separated by distribution between organic phase and fluorous phase.
    Type: Application
    Filed: December 19, 2002
    Publication date: August 7, 2003
    Applicant: ASCA GmbH Angewandte Synthesechemie Adlershof
    Inventors: Fritz Theil, Helmut Sonnenschein
  • Method for kinetic resolution of racemates of alcohols or carboxylic acid esters
    Publication number: 20030003552
    Abstract: The invention relates to a method of kinetic resolution of racemates of alcohols or carboxylic acid esters. Fluorine phase marking of the quicker or more slowly reacting enantiomer is obtained by lipase-catalysed reaction of racemic alcohols with fluorinated carboxylic acid esters of racemic alcohols with water. The enantiomers are then extractively separated by division between an organic and a fluorine phase.
    Type: Application
    Filed: June 18, 2002
    Publication date: January 2, 2003
    Inventors: Fritz Theil, Helmut Sonnenschein
  • Use of the chiral group (1S, 4R)-1,4-dihydroxy-2-cyclopentenyl in the preparation of polar, liquid-crystalline compounds
    Patent number: 5543076
    Abstract: The chiral group of the formula ##STR1## is used as a constituent of liquid-crystalline compounds.
    Type: Grant
    Filed: September 16, 1994
    Date of Patent: August 6, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl Siemensmeyer, Carsten Tschierske, Fritz Theil, Detley Joachimi