Patents by Inventor Volker Maywald

Volker Maywald 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).

  • Publication number: 20230242493
    Abstract: Process for making a compound represented by formula (3), comprising the following steps: a) reacting an azide compound with a compound represented by formula (1) to yield compound (2), compound (2) being a compound represented by formula (2) or its salts, b) methylating compound (2) obtained in step a) using a methylating agent to obtain compound (3), wherein R1 denotes a hydrocarbon rest, and wherein in step a) a solvent system A and in step b) a solvent system B is used, wherein both solvent systems A and B comprise one dipolar aprotic solvent or a mixture of dipolar aprotic solvents as the main component, and wherein steps a) and b) are carried without isolating the compound (2) obtained in step a).
    Type: Application
    Filed: October 20, 2020
    Publication date: August 3, 2023
    Inventors: Birgit Gockel, Volker Maywald, Manfred Ehresmann, Daniel Saelinger, Roland Goetz, Jan Haller
  • Patent number: 11591293
    Abstract: A method for manufacturing an isocyanate compound represented by formula (2) (2) wherein R1 represents a methyl group, an ethyl group, a cyclopropyl group, a chlorine atom, a bromine atom, or a methoxy group; and R2 represents an alkyl group having 1 to 6 carbon atoms, comprising reacting an aniline compound represented by formula (1) (1) wherein R1 and R2 are defined as above with a phosgene compound at a temperature of from 40° C. to the boiling point of the inert solvent in at least one kind of inert solvent.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: February 28, 2023
    Assignee: BASF SE
    Inventors: Volker Maywald, Roland Goetz, Daniel Saelinger, Birgit Gockel, Manfred Ehresmann, Markus Jegelka, Joaquim Henrique Teles
  • Patent number: 11261145
    Abstract: The present invention relates to a process for preparing bromotrichloromethane comprising a) providing bromine in chloroform; and b) radiation of the resulting solution with light in the range of 350 to 550 nm, wherein said solution of bromine in chloroform is not radiated with radiation of a wavelength below 350 nm.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: March 1, 2022
    Assignee: BASF SE
    Inventors: Bernd Schaefer, Roland Goetz, Volker Hickmann, Volker Maywald, Daniel Saelinger
  • Publication number: 20220024864
    Abstract: A method for manufacturing an isocyanate compound represented by formula (2) (2) wherein R1 represents a methyl group, an ethyl group, a cyclopropyl group, a chlorine atom, a bromine atom, or a methoxy group; and R2 represents an alkyl group having 1 to 6 carbon atoms, comprising reacting an aniline compound represented by formula (1) (1) wherein R1 and R2 are defined as above with a phosgene compound at a temperature of from 40° C. to the boiling point of the inert solvent in at least one kind of inert solvent.
    Type: Application
    Filed: December 11, 2019
    Publication date: January 27, 2022
    Inventors: Volker Maywald, Roland Goetz, Daniel Saelinger, Birgit Gockel, Manfred Ehresmann, Markus Jegelka, Joaquim Henrique Teles
  • Publication number: 20200071246
    Abstract: The present invention relates to a process for preparing bromotrichloromethane comprising a) providing bromine in chloroform; and b) radiation of the resulting solution with light in the range of 350 to 550 nm, wherein said solution of bromine in chloroform is not radiated with radiation of a wavelength below 350 nm.
    Type: Application
    Filed: March 12, 2018
    Publication date: March 5, 2020
    Inventors: Bernd SCHAEFER, Roland GOETZ, Volker HICKMANN, Volker MAYWALD, Daniel SAELINGER
  • Patent number: 10538493
    Abstract: The present invention relates to a process to produce highly purified crystalline 1-(4-chlorophenyl)pyrazol-3-ol (I).
    Type: Grant
    Filed: November 9, 2017
    Date of Patent: January 21, 2020
    Assignee: BASF SE
    Inventors: Volker Maywald, Roland Goetz, Daniel Saelinger, Timo Frassetto, Stefan Gropp
  • Publication number: 20190270710
    Abstract: The present invention relates to a process to produce highly purified crystalline 1-(4-chlorophenyl)pyrazol-3-ol (I).
    Type: Application
    Filed: November 9, 2017
    Publication date: September 5, 2019
    Inventors: Volker MAYWALD, Roland GOETZ, Daniel SAELINGER, Timo FRASSETTO, Stefan GROPP
  • Patent number: 9546130
    Abstract: The present invention relates to a process for manufacturing haloacetamides of formula (I), comprising sub-step (a): reacting halones of formula (II) with oleum; followed by sub-step (b): reacting the reaction mixture obtained in sub-step (a) with an amine of formula (IV) optionally in the presence of a base; wherein the variables are defined according to the description.
    Type: Grant
    Filed: June 4, 2014
    Date of Patent: January 17, 2017
    Assignee: BASF SE
    Inventors: Timo Frassetto, Volker Maywald, Michael Rack, Maximilian Dochnahl, Bernd Wolf
  • Patent number: 9518045
    Abstract: The present invention relates to a process for manufacturing benzoxazinones of formula (I), wherein the variables are defined according to the description, by reacting carbamates of formula (II) are reacted with carbamat-benzoxazinones of formula (III) in the presence of a base.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: December 13, 2016
    Assignee: BASF SE
    Inventors: Maximilian Dochnahl, Roland Goetz, Joachim Gebhardt, Uwe Josef Vogelbacher, Timo Frassetto, Michael Rack, Volker Maywald, Bernd Wolf
  • Patent number: 9512093
    Abstract: The present invention relates to a process for manufacturing 4-propargylated amino-benzoxazinones of formula (I), comprising the following steps: step a) preparing propargyl chloride by reacting propargyl alcohol with thionyl chloride optionally in the presence of a catalyst; and step b) reacting the propargyl chloride prepared in step (a) with a NH-benzoxazinone of formula (II); wherein the variables are defined according to the description.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: December 6, 2016
    Assignee: BASF SE
    Inventors: Timo Frassetto, Maximilian Dochnahl, Michael Rack, Volker Maywald, Bernd Wolf, Roland Goetz, Philip Muelheims, Rudolf Haeberle
  • Patent number: 9409894
    Abstract: The present invention relates to carbamates of formula (I), wherein the variables are defined according to the description, as well as to a process for manufacturing carbamates of formula (I), and to the use of carbamates of formula (I) in manufacturing benzoxazinones of formula (VII).
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: August 9, 2016
    Assignee: BASF SE
    Inventors: Maximilian Dochnahl, Roland Götz, Joachim Gebhardt, Uwe Josef Vogelbacher, Timo Frassetto, Michael Rack, Volker Maywald, Bernd Wolf
  • Publication number: 20160176805
    Abstract: The present invention relates to a process for manufacturing haloacetamides of formula (I), comprising sub-step (a): reacting halones of formula (II) with oleum; followed by sub-step (b): reacting the reaction mixture obtained in sub-step(a) with an amine of formula (IV) optionally in the presence of a base; wherein the variables are defined according to the description.
    Type: Application
    Filed: June 4, 2014
    Publication date: June 23, 2016
    Applicant: BASF SE
    Inventors: Timo FRASSETTO, Volker MAYWALD, Michael RACK, Maximilian DOCHNAHL, Bernd WOLF
  • Patent number: 9365495
    Abstract: The present invention relates to a process for manufacturing aryloxyacetamides of formula (I), by reacting haloacetamides of formula (II) with a phenol of formula (III); wherein the variables are defined according to the description, and aryloxyacetamides of formula (I).
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: June 14, 2016
    Assignee: BASF SE
    Inventors: Maximilian Dochnahl, Michael Rack, Michael Keil, Bernd Wolf, Uwe Josef Vogelbacher, Joachim Gebhardt, Timo Frassetto, Volker Maywald
  • Patent number: 9359312
    Abstract: The present invention relates to a process for manufacturing a benzoxazinone of formula (I), by reacting a nitro compound of formula (II) with a reducing agent to obtain an amino compound of formula (III), and then reacting the amino compound of formula (III) with an acid; wherein the variables are defined according to the description, and benzoxazinone of formula (I).
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: June 7, 2016
    Assignee: BASF SE
    Inventors: Maximilian Dochnahl, Michael Rack, Michael Keil, Bernd Wolf, Uwe Josef Vogelbacher, Joachim Gebhardt, Timo Frassetto, Volker Maywald
  • Patent number: 9353070
    Abstract: The present invention relates to carbamat-benzoxazinones of formula (I), wherein the variables are defined according to the description, as well as to a process for manufacturing carbamat-benzoxazinones of formula (I), and to the use of carbamat-benzoxazinones of formula (I) in manufacturing benzoxazinones of formula (X).
    Type: Grant
    Filed: August 7, 2013
    Date of Patent: May 31, 2016
    Assignee: BASF SE
    Inventors: Maximilian Dochnahl, Roland Goetz, Joachim Gebhardt, Uwe Josef Vogelbacher, Timo Frassetto, Michael Rack, Volker Maywald, Bernd Wolf
  • Publication number: 20160137615
    Abstract: The present invention relates to a process for manufacturing 4-propargylated amino-benzoxazinones of formula (I), comprising the following steps: step a) preparing propargyl chloride by reacting propargyl alcohol with thionyl chloride optionally in the presence of a catalyst; and step b) reacting the propargyl chloride prepared in step (a) with a NH-benzoxazinone of formula (II); wherein the variables are defined according to the description.
    Type: Application
    Filed: June 17, 2014
    Publication date: May 19, 2016
    Inventors: Timo FRASSETTO, Maximilian DOCHNAHL, Michael RACK, Volker MAYWALD, Bernd WOLF, Roland GOETZ, Philip MUELHEIMS, Rudolf HAEBERLE
  • Publication number: 20150299148
    Abstract: The present invention relates to carbamat-benzoxazinones of formula (I), wherein the variables are defined according to the description, as well as to a process for manufacturing carbamat-benzoxazinones of formula (I), and to the use of carbamat-benzoxazinones of formula (I) in manufacturing benzoxazinones of formula (X).
    Type: Application
    Filed: August 7, 2013
    Publication date: October 22, 2015
    Inventors: Maximilian DOCHNAHL, Roland GÖTZ, Joachim GEBHARDT, Uwe Josef VOGELBACHER, Timo FRASSETTO, Michael RACK, Volker MAYWALD, Bernd WOLF
  • Patent number: 9126905
    Abstract: The present invention relates to a process for manufacturing fluoroaromatics of formula (I), A-F ??(I) comprising step a) diazotization of aminoaromatics of formula (II) in anhydrous HF with an aqueous solution of a diazotizing agent; followed by step b) thermic decomposition of the diazonium salt of formula (III) resulting from step a); wherein the variables are defined according to the description.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: September 8, 2015
    Assignee: BASF SE
    Inventors: Michael Rack, Maximilian Dochnahl, Volker Maywald, Bernd Wolf, Joachim Gebhardt, Timo Frassetto, Uwe Josef Vogelbacher, Roland Götz
  • Publication number: 20150218140
    Abstract: The present invention relates to a process for manufacturing benzoxazinones of formula (I), wherein the variables are defined according to the description, by reacting carbamates of formula (II) are reacted with carbamat-benzoxazinones of formula (III) in the presence of a base.
    Type: Application
    Filed: August 9, 2013
    Publication date: August 6, 2015
    Inventors: Maximilian Dochnahl, Roland Goetz, Joachim Gebhardt, Uwe Josef Vogelbacher, Timo Frassetto, Michael Rack, Volker Maywald, Bernd Wolf
  • Publication number: 20150218139
    Abstract: The present invention relates to carbamates of formula (I), wherein the variables are defined according to the description, as well as to a process for manufacturing carbamates of formula (I), and to the use of carbamates of formula (I) in manufacturing benzoxazinones of formula (VII).
    Type: Application
    Filed: July 29, 2013
    Publication date: August 6, 2015
    Inventors: Maximilian Dochnahl, Roland Götz, Joachim Gebhardt, Uwe Josef Vogelbacher, Timo Frassetto, Michael Rack, Volker Maywald, Bernd Wolf