Patents by Inventor Oliver Knopff

Oliver Knopff 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 FOR PREPARING 3-(CYCLOHEX-1-EN-1-YL)PROPANAL DERIVATIVES
    Publication number: 20230365523
    Abstract: The present invention relates to the field of perfumery. More particularly, it concerns valuable new chemical intermediates for producing perfuming ingredients. Moreover, the present invention comprises also a process for producing compound of formula (I).
    Type: Application
    Filed: August 30, 2021
    Publication date: November 16, 2023
    Inventors: Oliver KNOPFF, Philippe DUPAU, Jean-Jacques RIEDHAUSER, Nicolas POIRIER, Dilver Peña FUENTES, Armin BÖRNER, Luigi MARINONI
  • PROCESS FOR PREPARING PERFUMING INTERMEDIATE
    Publication number: 20230095887
    Abstract: The present invention relates to the field of organic synthesis and more specifically it concerns a process for preparing compound of formula (I) by a cross metathesis reaction. Said compound of formula (I) is valuable new chemical intermediate for producing perfuming ingredients and is also part of the present invention.
    Type: Application
    Filed: March 4, 2021
    Publication date: March 30, 2023
    Inventor: Oliver KNOPFF
  • Process for the preparation of polysantol-type compounds
    Patent number: 10807941
    Abstract: The present invention relates to the field of organic synthesis and more specifically it concerns a novel compound of formula (I). The invention additionally relates to a process for preparing a compound of formula (III) using the compound of formula (I) as an intermediate, wherein the process involves elimination of the R3(X)nC(?O)O functional group of the compound of formula (I).
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: October 20, 2020
    Assignee: Firmenich SA
    Inventor: Oliver Knopff
  • PROCESS FOR THE PREPARATION OF POLYSANTOL-TYPE COMPOUNDS
    Publication number: 20190292127
    Abstract: The present invention relates to the field of organic synthesis and more specifically it concerns a novel compound of formula (I) which could be used as a novel intermediate in the process for the preparation of compound of formula (III).
    Type: Application
    Filed: June 1, 2017
    Publication date: September 26, 2019
    Applicant: Firmenich SA
    Inventor: Oliver KNOPFF
  • Prins reaction on hindered substrates
    Patent number: 9926249
    Abstract: The present invention relates to the field of organic synthesis and more specifically it concerns a process for the preparation of homoallylic alcohol derivatives as defined in formula (I) via a reaction of alkene of formula (II) with an aldehyde.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: March 27, 2018
    Assignee: Firmenich SA
    Inventors: Oliver Knopff, Fabien Fonteny
  • Intermediates and process for the preparation of sandalwood oil building blocks
    Patent number: 9879203
    Abstract: The present invention concerns a process for the preparation of an oxidized terpenes fraction which proved to be particularly useful in the preparation of sandalwood oil building blocks.
    Type: Grant
    Filed: November 16, 2015
    Date of Patent: January 30, 2018
    Assignee: Firmenich SA
    Inventors: Oliver Knopff, Fabien Fonteny
  • INTERMEDIATES AND PROCESS FOR THE PREPARATION OF SANDALWOOD OIL BUILDING BLOCKS
    Publication number: 20170260477
    Abstract: The present invention concerns a process for the preparation of an oxidized terpenes fraction which proved to be particularly useful in the preparation of sandalwood oil building blocks.
    Type: Application
    Filed: November 16, 2015
    Publication date: September 14, 2017
    Applicant: Firmenich SA
    Inventors: Oliver KNOPFF, Fabien FONTENY
  • PRINS REACTION ON HINDERED SUBSTRATES
    Publication number: 20170129834
    Abstract: The present invention relates to the field of organic synthesis and more specifically it concerns a process for the preparation of homoallylic alcohol derivatives as defined in formula (I) via a reaction of alkene of formula (II) with an aldehyde.
    Type: Application
    Filed: July 1, 2015
    Publication date: May 11, 2017
    Applicant: Firmenich SA
    Inventors: Oliver KNOPFF, Fabien FONTENY
  • Process for the preparation of 4-methylpent-3-en-1-ol derivatives
    Patent number: 9381507
    Abstract: The present invention concerns a process for the preparation with high selectivity of a compound of formula (I) by isomerization at room temperature of compound of formula (II) in the presence of a complex of formula [Ru(dienyl)2H]X.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: July 5, 2016
    Assignee: Firmenich SA
    Inventors: Jean-Jacques Riedhauser, Oliver Knopff, Luigi Marinoni
  • Hydrocarbonylation or methoxycarbonylation of 1,3-diene derivatives with palladium complex
    Patent number: 9376365
    Abstract: The present invention concerns a process of carbonylation of poly-unsaturated diene with high selectivity for the preparation of a ?,?-unsaturated carboxylic acid or ester in the presence of water or alcohol and catalyzed by [PdCl2P2] complex wherein P2 is two mono or one bidentate phosphine ligand.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: June 28, 2016
    Assignee: Firmenich SA
    Inventors: Jean-Jacques Riedhauser, Oliver Knopff
  • PROCESS FOR THE PREPARATION OF 4-METHYLPENT-3-EN-1-OL DERIVATIVES
    Publication number: 20150353463
    Abstract: The present invention concerns a process for the preparation with high selectivity of a compound of formula (I) by isomerization at room temperature of compound of formula (II) in the presence of a complex of formula [Ru(dienyl)2H]X.
    Type: Application
    Filed: January 21, 2014
    Publication date: December 10, 2015
    Applicant: Firmenich SA
    Inventors: Jean-Jacques RIEDHAUSER, Oliver KNOPFF, Luigi MARINONI
  • Aldehyde as perfuming ingredient
    Patent number: 9187708
    Abstract: The present invention relates to the use as perfuming ingredient of -methyl-8- methylene-4, 9-decadienal, in particular to impart aldehydic notes evoking cardamon and/or floral notes evoking the lily of the valley.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: November 17, 2015
    Assignee: Firmenich SA
    Inventor: Oliver Knopff
  • HYDROCARBONYLATION OR METHOXYCARBONYLATION OF 1,3-DIENE DERIVATIVES WITH PALLADIUM COMPLEX
    Publication number: 20150299085
    Abstract: The present invention concerns a process of carbonylation of poly-unsaturated diene with high selectivity for the preparation of a ?,?-unsaturated carboxylic acid or ester in the presence of water or alcohol and catalyzed by [PdCl2P2] complex wherein P2 is two mono or one bidendate phosphine ligand.
    Type: Application
    Filed: November 6, 2013
    Publication date: October 22, 2015
    Applicant: FIRMENICH SA
    Inventors: Jean-Jacques RIEDHAUSER, Oliver KNOPFF
  • NEW ALDEHYDE AS PERFUMING INGREDIENT
    Publication number: 20150005213
    Abstract: The present invention relates to the use as perfuming ingredient of 4-methyl-8- methylene-4,9-decadienal, in particular to impart aldehydic notes evoking cardamon and/or floral notes evoking the lily of the valley.
    Type: Application
    Filed: December 6, 2012
    Publication date: January 1, 2015
    Applicant: FIRMENICH SA
    Inventor: Oliver Knopff
  • Substituted cyclohexenones
    Patent number: 8173846
    Abstract: The present invention relates to a method of preparation of an optically active cyclohexenone derivative of Formula (I) OR1R2*R1 and wherein R1 and R2 are organic residues.
    Type: Grant
    Filed: January 8, 2009
    Date of Patent: May 8, 2012
    Assignee: Firmenich SA
    Inventor: Oliver Knopff
  • SUBSTITUTED CYCLOHEXENONES
    Publication number: 20100274059
    Abstract: The present invention relates to a method of preparation of an optically active cyclohexenone derivative of Formula (I) OR1R2*R1 and wherein R1 and R2 are organic residues.
    Type: Application
    Filed: January 8, 2009
    Publication date: October 28, 2010
    Applicant: Firmenich SA
    Inventor: Oliver Knopff
  • Substituted cyclohexanones
    Patent number: 7470820
    Abstract: The present invention relates to a cyclohexanone derivative of formula in the form of any one of its isomers or mixture thereof. The invention concerns also the preparation and the use of this derivative. The compounds of the invention are useful starting materials for the preparation of various optically active compounds.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: December 30, 2008
    Assignee: Firmenich SA
    Inventors: Oliver Knopff, Charles Fehr, José Galindo
  • Substituted Cyclohexanones
    Publication number: 20080228008
    Abstract: The present invention relates to a cyclohexanone derivative of formula in the form of any one of its isomers or mixture thereof. The invention concerns also the preparation and the use of this derivative. The compounds of the invention are useful starting materials for the preparation of various optically active compounds.
    Type: Application
    Filed: July 18, 2006
    Publication date: September 18, 2008
    Inventors: Oliver Knopff, Charles Fehr, Jose Galindo
  • Process for the preparation of optically active cyclohexenones
    Patent number: 7332633
    Abstract: The present invention relates to a process for the preparation of an optically active 5-substituted cyclohexenone (II) by treating an achiral macrocyclic 3-substituted-1,5-diketone (I) in the presence of an optically active sodium, potassium or cesium alkoxide.
    Type: Grant
    Filed: July 10, 2006
    Date of Patent: February 19, 2008
    Assignee: Firmenich SA
    Inventor: Oliver Knopff
  • Process for the preparation of optically active cyclohexenones
    Publication number: 20060252967
    Abstract: The present invention relates to a process for the preparation of an optically active 5-substituted cyclohexenone (II) by treating an achiral macrocyclic 3-substituted-1,5-diketone (I) in the presence of an optically active sodium, potassium or cesium alkoxide.
    Type: Application
    Filed: July 10, 2006
    Publication date: November 9, 2006
    Inventor: Oliver Knopff