Patents by Inventor Geraldine Primazot

Geraldine Primazot 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).

  • Process of preparation of optically active ?aminoacetals
    Patent number: 9115058
    Abstract: The invention relates to a process for preparing optically active ?-aminoacetals by resolution of a racemic mixture or of a mixture of enantiomers via the formation of diastereoisomeric salts, and also novel intermediates in the form of diastereoisomeric salts.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: August 25, 2015
    Assignee: WEYLCHEM LAMOTTE S.A.S.
    Inventors: Muriel Albalat, Geraldine Primazot, Didier Wilhelm, Jean-Claude Vallejos
  • Process for deacetalisation of ? aminoacetals
    Patent number: 8609882
    Abstract: The invention relates to a process for the preparation of N-protected ?-aminoaldehydes by deacetalization of the acetal functional group of corresponding N-protected ?-aminoacetals using formic acid.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: December 17, 2013
    Assignee: Clariant Speciality Fine Chemicals (France)
    Inventors: Muriel Albalat, Géraldine Primazot, Didier Wilhelm, Jean-Claude Vallejos
  • Process of racemisation of optically active alpha aminoacetals
    Patent number: 8350092
    Abstract: The invention relates to a process for preparing ?-aminoacetals substantially in racemic form, comprising a step of oxidizing optically enriched ?-aminoacetals to the corresponding oximes, in the presence of a catalyst, and a step of reducing the oximes thus obtained.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: January 8, 2013
    Assignee: Clariant Specialty Fine Chemicals (France)
    Inventors: Muriel Albalat, Geraldine Primazot, Didier Wilhelm, Jean-Claude Vallejos
  • Process Of Preparation Of Optically Active Alpha Aminoacetals
    Publication number: 20110034726
    Abstract: The invention relates to a process for preparing optically active ?-aminoacetals by resolution of a racemic mixture or of a mixture of enantiomers via the formation of diastereoisomeric salts, and also novel intermediates in the form of diastereoisomeric salts.
    Type: Application
    Filed: January 21, 2009
    Publication date: February 10, 2011
    Applicant: CLARIANT SPECIALTY FINE CHEMICALS (FRANCE)
    Inventors: Muriel Albalat, Geraldine Primazot, Didier Wilhelm, Jean-Claude Vallejos
  • Process Of Racemisation Of Optically Active Alpha Aminoacetals
    Publication number: 20100152490
    Abstract: The invention relates to a process for preparing ?-aminoacetals substantially in racemic form, comprising a step of oxidizing optically enriched ?-aminoacetals to the corresponding oximes, in the presence of a catalyst, and a step of reducing the oximes thus obtained.
    Type: Application
    Filed: May 21, 2007
    Publication date: June 17, 2010
    Applicant: CLARIANT SPECIALTY FINE CHEMICALS (FRANCE)
    Inventors: Muriel Albalat, Geraldine Primazot, Didier Wilhelm, Jean-Claude Vallejos
  • Process For Deacetalisation Of Alpha Aminoacetals
    Publication number: 20100137633
    Abstract: The invention relates to a process for the preparation of N-protected ?-aminoaldehydes by deacetalization of the acetal functional group of corresponding N-protected ?-aminoacetals using formic acid.
    Type: Application
    Filed: April 2, 2008
    Publication date: June 3, 2010
    Applicant: CLARIANT SPECIALTY FINE CHEMICALS (FRANCE)
    Inventors: Muriel Albalat, Geraldine Primazot, Didier Wilhelm, Jean-Claude Vallejos