Patents by Inventor Christophe Crévisy

Christophe Crévisy 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).

  • Stable and highly tunable metathesis catalysts
    Patent number: 8835628
    Abstract: The present invention relates to catalytically active compounds of the general formula (1) that are highly tunable, as well as to a method of their preparation and their use in any type metathesis reaction. The new compounds of the present invention comprise activation sites that allow for specific catalyst design. Particularly, side chains and ligands allow efficient activity and specificity control of the catalysts of the present invention.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: September 16, 2014
    Assignees: Ecole Nationale Superieure de Chimie de Rennes, Centre National de la Recherche Scientifique CNRS
    Inventors: Marc Mauduit, Frédéric Caijo, Christophe Crevisy
  • NOVEL STABLE AND HIGHLY TUNABLE METATHESIS CATALYSTS
    Publication number: 20130197218
    Abstract: The present invention relates to catalytically active compounds of the general formula (1) that are highly tunable, as well as to a method of their preparation and their use in any type metathesis reaction. The new compounds of the present invention comprise activation sites that allow for specific catalyst design. Particularly, side chains and ligands allow efficient activity and specificity control of the catalysts of the present invention.
    Type: Application
    Filed: July 30, 2010
    Publication date: August 1, 2013
    Inventors: Marc Mauduit, Frédéric Caijo, Christophe Crevisy
  • TERPENOID DERIVATIVES OBTAINED FROM TERPENOIDS STEMING FROM RENEWABLE SOURCES
    Publication number: 20130190518
    Abstract: The present invention relates to a process for preparing a terpenoid derivative, the process comprising a metathesis of an olefin and a terpenoid, and to terpenoid derivatives prepared with said process.
    Type: Application
    Filed: July 11, 2011
    Publication date: July 25, 2013
    Applicant: Ecole Nationale Superieure de Chimie de Rennes
    Inventors: Marc Mauduit, Frédéric Caijo, Christophe Crévisy
  • 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
  • 1,5-diyne-3-cycloalkene compounds
    Patent number: 5405948
    Abstract: A compound of formula (I): selected from 1,5-diyne-3-cyclodecene and undecene compounds. ##STR1## in which: R represents a hydrogen atom, a straight-chain or branched (C.sub.1 -C.sub.6) acyl radical or a glycoside radical,R' represents a hydrogen atom ##STR2## n is 1 or 2, and R.sub.1 and R.sub.2 simultaneously represent two hydrogen atoms or, together with the two carbon atoms and the double bond to which they are attached, form a phenyl ring.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: April 11, 1995
    Assignee: Adir et Compagnie
    Inventors: Jean-Marie Beau, Christophe Crevisy, Ghanem Atassi, Alain Pierre