Patents by Inventor Christoph Taeschler

Christoph Taeschler 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).

  • Method for fluoroalkylation of enamines
    Patent number: 11739066
    Abstract: The invention discloses a method for fluoroalkylation of enamines with a fluoro alkyl halide in the presence of a base.
    Type: Grant
    Filed: June 12, 2020
    Date of Patent: August 29, 2023
    Assignee: Arxada AG
    Inventors: Christoph Taeschler, Matthias Beller, Helfried Neumann, Florian Fischer, Shaoke Zhang, Fei Ye, Stefan Ellinger, Florencio Zaragoza Doerwald
  • Method for preparation of fluoro alkylated compounds by homogeneous Ni catalysis
    Patent number: 11530175
    Abstract: The invention discloses a method for the preparation of fluoro alkylated compounds by homogeneous Ni catalyzed fluoro alkylation with fluoro alkyl halides in the presence of a base.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: December 20, 2022
    Assignee: ARXADA AG
    Inventors: Christoph Taeschler, Stefan Ellinger, Florencio Zaragoza Doerwald, Matthias Beller, Helfried Neumann, Florian Fischer, Shaoke Zhang, Nicolas Rotta-Loria
  • Method for Fluoroalkylation of Enamines
    Publication number: 20220204464
    Abstract: The invention discloses a method for fluoroalkylation of enamines with a fluoro alkyl halide in the presence of a base.
    Type: Application
    Filed: June 12, 2020
    Publication date: June 30, 2022
    Inventors: Christoph TAESCHLER, Matthias BELLER, Helfried NEUMANN, Florian FISCHER, Shaoke ZHANG, Fei YE, Stefan ELLINGER, Florencio ZARAGOZA DOERWALD
  • Method for preparation of fluoro alkylated 1,4-dioxene by homogeneous Ni catalysis
    Patent number: 11332456
    Abstract: The invention discloses a method for the preparation of fluoro alkylated 1,4-dioxene by homogeneous Ni catalyzed fluoro alkylation with fluoro alkyl halides of 1,4-dioxane in the presence of a base.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: May 17, 2022
    Assignee: Lonza Solutions AG
    Inventors: Christoph Taeschler, Thomas Belser, Stefan Ellinger, Florencio Zaragoza Doerwald, Matthias Beller, Helfried Neumann, Florian Fischer, Shaoke Zhang
  • Method for Preparation of Fluoro Alkylated Compounds by Homogeneous NI Catalysis
    Publication number: 20220041530
    Abstract: The invention discloses a method for the preparation of fluoro alkylated compounds by homogeneous Ni catalyzed fluoro alkylation with fluoro alkyl halides in the presence of a base.
    Type: Application
    Filed: February 20, 2020
    Publication date: February 10, 2022
    Inventors: Christoph Taeschler, Stefan Ellinger, Florencio Zaragoza Doerwald, Matthias Beller, Helfried Neumann, Florian Fischer, Shaoke Zhang, Nicolas Rotta-Loria
  • Method for Preparation of Fluoro Alkylated 1,4-Dioxene by Homogeneous NI Catallysis
    Publication number: 20220041570
    Abstract: The invention discloses a method for the preparation of fluoro alkylated 1,4-dioxene by homogeneous Ni catalyzed fluoro alkylation with fluoro alkyl halides of 1,4-dioxane in the presence of a base.
    Type: Application
    Filed: February 20, 2020
    Publication date: February 10, 2022
    Inventors: Christoph Taeschler, Thomas Belser, Stefan Ellinger, Florencio Zaragoza Doerwald, Matthias Beller, Helfried Neumann, Florian Fischer, Shaoke Zhang
  • Method for preparation of alkylated or fluoro, chloro and fluorochloro alkylated compounds by heterogeneous cobalt catalysis
    Patent number: 10968187
    Abstract: The invention discloses a method for preparation of alkylated, fluoro alkylated, chloro alkylated and fluorochloro alkylated compounds by a heterogeneous Co-catalysed alkylation or fluoro, chloro and fluorochloro alkylation with alkyl halides, fluoro alkyl halides, chloro alkyl halides or fluorochloro alkyl halides respectively.
    Type: Grant
    Filed: July 26, 2018
    Date of Patent: April 6, 2021
    Assignee: Lonza Solutions AG
    Inventors: Christoph Taeschler, Florencio Zaragoza Doerwald, Stefan Ellinger, Matthias Beller, Helfried Neumann, Florian Fischer
  • Method for Preparation of Alkylated or Fluoro, Chloro and Fluorochloro Alkylated Compounds by Heterogeneous Cobalt Catalysis
    Publication number: 20200157063
    Abstract: The invention discloses a method for preparation of alkylated, fluoro alkylated, chloro alkylated and fluorochloro alkylated compounds by a heterogeneous Co-catalysed alkylation or fluoro, chloro and fluorochloro alkylation with alkyl halides, fluoro alkyl halides, chloro alkyl halides or fluorochloro alkyl halides respectively.
    Type: Application
    Filed: July 26, 2018
    Publication date: May 21, 2020
    Inventors: Christoph Taeschler, Florencio Zaragoza Doerwald, Stefan Ellinger, Matthias Beller, Helfried Neumann, Florian Fischer
  • METHOD FOR THE PREPARATION OF 3-(TRIFLUOROMETHYL)PYRAZINE-2-CARBOXYLIC ACID ESTERS
    Publication number: 20190256477
    Abstract: The invention discloses a method for the preparation of 3-(trifluoromethyl)pyrazine-2-carboxylic acid esters starting from alkyl 4,4,4-trifluoro-2-(hydroxyimino)-3-oxobutanoates by reaction with ethylenediamine.
    Type: Application
    Filed: August 30, 2017
    Publication date: August 22, 2019
    Inventors: Florencio ZARAGOZA DOERWALD, Christoph TAESCHLER, Erick CARREIRA
  • Method for preparation of n-butyl nitrite
    Patent number: 10125087
    Abstract: The invention discloses a method for the continuous preparation of n-butyl nitrite with a low content of n-butanol comprising the reaction of n-butanol, an acid and NaNO2 in a continuous way, in which the n-butanol, an acid and NaNO2 are mixed in a mixing device which provides for a pressure drop of at least 1 bar; the acid is selected from the group consisting of HCI, H2SO4, formic acid, methanesulfonic acid, and mixtures thereof; and the amount of HCI is at least 1.02 molar equivalent based on the molar amount of n-butanol.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: November 13, 2018
    Assignee: LONZA LTD
    Inventors: Christoph Taeschler, Ulrich Mayerhoeffer, Christophe Girard, Michael Bittel, Rolf Kalbermatten, Claudio Arnold, Stefan Garms, Christian Schnider, Stefan Tille, Manuel Favre, Guy Raboud, Kilian Schnydrig, Martin Venetz, Thomas Eggel
  • METHOD FOR PREPARATION OF N-BUTYL NITRITE
    Publication number: 20180251420
    Abstract: The invention discloses a method for the continuous preparation of n-butyl nitrite with a low content of n-butanol comprising the reaction of n-butanol, an acid and NaNO2 in a continuous way, in which the n-butanol, an acid and NaNO2 are mixed in a mixing device which provides for a pressure drop of at least 1 bar; the acid is selected from the group consisting of HCI, H2SO4, formic acid, methanesulfonic acid, and mixtures thereof; and the amount of HCI is at least 1.02 molar equivalent based on the molar amount of n-butanol.
    Type: Application
    Filed: September 14, 2016
    Publication date: September 6, 2018
    Inventors: Christoph Taeschler, Ulrich Mayerhoeffer, Christophe Girard, Michael Bittel, Rolf Kalbermatten, Claudio Arnold, Stefan Garms, Christian Schnider, Stefan Tille, Manuel Favre, Guy Raboud, Kilian Schnydrig, Martin Venetz, Thomas Eggel
  • METHOD FOR PREPARATION OF 1-METHYL-3-(TRIFLUOROMETHYL)-1H-PYRAZOL-5-OL
    Publication number: 20180230103
    Abstract: The invention discloses a method for the preparation of 1-methyl-3-(trifluoromethyl)-1H-pyrazol-5-ol with high selectivity with respect to the content of the isomer 1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-ol.
    Type: Application
    Filed: November 14, 2016
    Publication date: August 16, 2018
    Applicant: LONZA LTD
    Inventors: Christoph Taeschler, Christophe Girard, Sandro Tonazzi, Daniel Polenske, Stefan Garms, Christoph Escher, Andreas Lorenz, Sonja Biner, Mareile Von Der Gruen, Herbert Kuehberger, Jonas Zurbriggen, Dieter In-Albon, Beat Lutz
  • METHOD FOR PREPARATION OF FLUORO, CHLORO AND FLUOROCHLORO ALKYLATED COMPOUNDS BY HOMOGENEOUS CATALYSIS
    Publication number: 20170320878
    Abstract: The invention discloses a method for preparation of fluoro, chloro and fluorochloro alkylated compounds by homogeneous Pd catalyzed fluoro, chloro and fluorochloro alkylation with fluoro, chloro and fluorochloroalkyl halides in the presence of di(1-adamantyl)-n-butylphosphine and in the presence of 2,2,6,6-tetramethylpiperidine 1-oxyl.
    Type: Application
    Filed: November 5, 2015
    Publication date: November 9, 2017
    Applicant: Lonza Ltd
    Inventors: Christoph Taeschler, Florencio Zaragoza Doerwald, Stefan Ellinger, Matthias Beller, Helfried Neumann, Lin He, Kishore Natte
  • Method for preparation of fluoro, chloro and fluorochloro alkylated compounds by homogeneous catalysis
    Patent number: 9809596
    Abstract: The invention discloses a method for preparations of fluoro, chloro and fluorochloro alkylated compounds by homogeneous Pd catalyzed fluoro, chloro and fluorochloro alkylation with fluoro, chloro and fluorochloroalkyl halides in the presence of di(1-adamantyl)-adamantyl-n-butylphosphine and in the presence of 2,2,6,6-tetramethylpiperdine 1-oxyl.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: November 7, 2017
    Assignee: Lonza Ltd.
    Inventors: Christoph Taeschler, Florencio Zaragoza Doerwald, Stefan Ellinger, Matthias Beller, Helfried Neumann, Lin He, Kishore Natte
  • Method for preparation of alkylated or fluoro, chloro and fluorochloro alkylated compounds by heterogeneous catalysis
    Patent number: 9771367
    Abstract: The invention discloses a method for preparation of alkylated or fluoro, chloro and fluorochloro alkylated compounds by a heterogeneous Pt/C-catalyzed alkylation or fluoro, chloro and fluorochloro alkylation with alkyl halides or with fluoro, chloro and fluorochloro alkyl halides in the presence of Cs2C03 or CsHC03.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: September 26, 2017
    Assignee: LONZA LTD
    Inventors: Christoph Taeschler, Matthias Beller, Helfried Neumann, Lin He, Kishore Natte, Stefan Ellinger, Florencio Zaragoza Doerwald
  • Method For Preparation of Alkylated or Fluoro, Chloro and Fluorochloro Alkylated Compounds By Heterogeneous Catalysis
    Publication number: 20170158695
    Abstract: The invention discloses a method for preparation of alkylated or fluoro, chloro and fluorochloro alkylated compounds by a heterogeneous Pt/C-catalyzed alkylation or fluoro, chloro and fluorochloro alkylation with alkyl halides or with fluoro, chloro and fluorochloro alkyl halides in the presence of Cs2C03 or CsHC03.
    Type: Application
    Filed: June 4, 2015
    Publication date: June 8, 2017
    Inventors: Christoph Taeschler, Matthias Beller, Helfried Neumann, Lin He, Kishore Natte, Stefan Ellinger, Florencio Zaragoza Doerwald
  • Method for preparation of 4-alkoxy-1,1,1-trifluorobut-3-en-2-ones from 1,1,1-trifluoroacetone
    Patent number: 9663436
    Abstract: The invention discloses a method for the preparation of 4-alkoxy-1,1,1-trifluorobut-3-en-2-ones from 1,1,1-trifluoroacetone.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: May 30, 2017
    Assignee: Lonza Ltd
    Inventors: Florencio Zaragoza Doerwald, Christoph Taeschler
  • Method For Preparation of 4-Alkoxy-1,1,1-Trifluorobut-3-en-2-ones From 1,1,1-Trifluoroacetone
    Publication number: 20170137359
    Abstract: The invention discloses a method for the preparation of 4-alkoxy-1,1,1-trifluorobut-3-en-2-ones from 1,1,1-trifluoroacetone.
    Type: Application
    Filed: June 24, 2015
    Publication date: May 18, 2017
    Inventors: Florencio Zaragoza Doerwald, Christoph Taeschler
  • METHOD FOR PREPARATION OF 6-TRIFLUOROMETHYLPYRIDINE-3-CARBOXYLIC ACID DERIVATIVES FROM TRIFLUOROACETYLACETIC ACID
    Publication number: 20160368876
    Abstract: The invention discloses a method for the preparation of 6-trifluoromethylpyridine-3-carboxylic acid derivatives (I) from trifluoroacetylacetic acid (II) and orthoesters (III), and their use for the preparation of pharmaceutical, chemical or agro-chemical products.
    Type: Application
    Filed: July 17, 2014
    Publication date: December 22, 2016
    Inventors: Florencio Zaragoza Doerwald, Michael Bersier, Christoph Taeschler
  • Method for preparation of 6-trifluoromethylpyridine-3-carboxylic acid derivatives from trifluoroacetylacetic acid
    Patent number: 9522885
    Abstract: The invention discloses a method for the preparation of 6-trifluoromethylpyridine-3-carboxylic acid derivatives (I) from trifluoroacetylacetic acid (II) and orthoesters (III), and their use for the preparation of pharmaceutical, chemical or agro-chemical products.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: December 20, 2016
    Assignee: Lonza Ltd
    Inventors: Florencio Zaragoza Doerwald, Michael Bersier, Christoph Taeschler