Patents by Inventor Joanna Wencel

Joanna Wencel 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).

  • Enantiopure terphenyls with two ortho-atropisomeric axes
    Patent number: 11434253
    Abstract: Enantiopure terphenyl presenting two ortho-located chiral axes having the following structural formula (I): their process of synthesis and their use as mono or bidentate ligands for asymmetric organometallic reactions, as organocatalysts, as chiral base and as generator, with metal, of isolable chiral metallic complexes for applications in asymmetric catalysis and others.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: September 6, 2022
    Assignees: UNIVERSITE DE STRASBOURG, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Quentin Dherbassy, Joanna Wencel-Delord, Françoise Colobert, Gaspard Hedouin
  • ENANTIOPURE TERPHENYLS WITH TWO ORTHO-ATROPISOMERIC AXES
    Publication number: 20210070785
    Abstract: Enantiopure terphenyl presenting two ortho-located chiral axes having the following structural formula (I): their process of synthesis and their use as mono or bidentate ligands for asymmetric organometallic reactions, as organocatalysts, as chiral base and as generator, with metal, of isolable chiral metallic complexes for applications in asymmetric catalysis and others.
    Type: Application
    Filed: December 12, 2018
    Publication date: March 11, 2021
    Inventors: Quentin DHERBASSY, Joanna WENCEL-DELORS, Françoise COLOBERT, Gaspard HEDOUIN
  • Chiral tridentate compounds, corresponding organometal complexes, method for preparing same and use of said compounds and complexes as ligands in asymmetrical catalysis
    Patent number: 8299250
    Abstract: The invention relates to a compound of the formula (I) or the formula (II) in which: W is an oxygen atom or a radical of the formula NH; X is hydrogen or an alkaline cation or a C1-C8 alkyl or a —(CH2)n3—C(R4)(R5)(R6) radical; X and R on the one hand and X and R1 on the other hand may independently form an optionally substituted cycle with 5, 6 or 7 links. The invention also relates to complexes of said compounds with at least one metal selected from the group comprising copper, palladium, ruthenium, iridium and rhodium, and to a method for the synthesis of these compounds. These compounds and complexes can be used in various asymmetrical catalysis methods.
    Type: Grant
    Filed: October 17, 2008
    Date of Patent: October 30, 2012
    Assignees: Ecole Nationale Supérieure de Chimie de Rennes, CNRS (Centre National de la Recherche Scientifique)
    Inventors: Marc Mauduit, Diane Rix, Christophe Crevisy, Joanna Wencel
  • CHIRAL TRIDENTATE COMPOUNDS, CORRESPONDING ORGANOMETAL COMPLEXES, METHOD FOR PREPARING SAME AND USE OF SAID COMPOUNDS AND COMPLEXES AS LIGANDS IN ASYMMETRICAL CATALYSIS
    Publication number: 20100267956
    Abstract: The invention relates to a compound of the formula (I) or the formula (II) in which: W is an oxygen atom or a radical of the formula NH; X is hydrogen or an alkaline cation or a C1-C8 alkyl or a —(CH2)n3—C(R4)(R5)(R6) radical; X and R on the one hand and X and R1 on the other hand may independently form an optionally substituted cycle with 5, 6 or 7 links. The invention also relates to complexes of said compounds with at least one metal selected from the group comprising copper, palladium, ruthenium, iridium and rhodium, and to a method for the synthesis of these compounds. These compounds and complexes can be used in various asymmetrical catalysis methods.
    Type: Application
    Filed: October 17, 2008
    Publication date: October 21, 2010
    Inventors: Marc Mauduit, Diane Rix, Christophe Crevisy, Joanna Wencel