Patents by Inventor Renat Kadyrov

Renat Kadyrov 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).

  • Patent number: 10781164
    Abstract: The present invention relates to a process for the N-alkylation of amines by reacting an amine with an orthocarboxylic acid ester and with hydrogen in the presence of a hydrogenation catalyst.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: September 22, 2020
    Assignee: Evonik Operations GmbH
    Inventor: Renat Kadyrov
  • Publication number: 20200231537
    Abstract: The present invention relates to a process for the N-alkylation of amines by reacting an amine with an orthocarboxylic acid ester and with hydrogen in the presence of a hydrogenation catalyst.
    Type: Application
    Filed: January 23, 2017
    Publication date: July 23, 2020
    Applicant: Evonik Degussa GmbH
    Inventor: Renat KADYROV
  • Patent number: 9890108
    Abstract: The present invention relates to a process for the preparation of amines, comprising the following steps: Reaction of a (i) amide acetal of the general formula (I), or (ii) ketene N,O-acetal of the general formula (II), or (iii) ester imide of the general formula (III) with H2 in the presence of a hydrogenation catalyst, where catalyst and amide acetal or ketene N,O-acetal or ester imide are used in a molar ratio of from 1:10 to 1:100 000 and where a hydrogen pressure of from 0.1 bar to 200 bar is established and where a temperature in the range of from 0° C. to 250° C. is established.
    Type: Grant
    Filed: October 15, 2014
    Date of Patent: February 13, 2018
    Assignee: Evonik Degussa GmbH
    Inventor: Renat Kadyrov
  • Patent number: 9878975
    Abstract: The present invention relates to a process for the preparation of amines, comprising the following steps: a. reaction of a (i) carboxylic acid amide of the general formula (I), or (ii) carboxylic acid diamide of the general formula (II), or (iii) di-, tri- or polypeptide, or (iv) peptide amide with carboxy-terminal amide function with an alkylating agent, b. addition of a hydrogenation catalyst to the reaction mixture in a molar ratio of from 1:10 to 1:100 000, based on carboxylic acid amide, carboxylic acid diamide, di-, tri- or polypeptide or peptide amide, c. reaction of the reaction mixture with hydrogen, where a hydrogen pressure of from 0.1 bar to 200 bar is established and where a temperature in a range of from 0° C. to 250° C. is established.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: January 30, 2018
    Assignee: Evonik Degussa GmbH
    Inventor: Renat Kadyrov
  • Publication number: 20160272571
    Abstract: The present invention relates to a process for the preparation of amines, comprising the following steps: a. reaction of a (i) carboxylic acid amide of the general formula (I), or (ii) carboxylic acid diamide of the general formula (II), or (iii) di-, tri- or polypeptide, or (iv) peptide amide with carboxy-terminal amide function with an alkylating agent, b. addition of a hydrogenation catalyst to the reaction mixture in a molar ratio of from 1:10 to 1:100 000, based on carboxylic acid amide, carboxylic acid diamide, di-, tri- or polypeptide or peptide amide, c. reaction of the reaction mixture with hydrogen, where a hydrogen pressure of from 0.1 bar to 200 bar is established and where a temperature in a range of from 0° C. to 250° C. is established.
    Type: Application
    Filed: October 16, 2014
    Publication date: September 22, 2016
    Applicant: Evonik Degussa GmbH
    Inventor: Renat Kadyrov
  • Publication number: 20160264513
    Abstract: The present invention relates to a process for the preparation of amines, comprising the following steps: Reaction of a (i) amide acetal of the general formula (I), or (ii) ketene N,O-acetal of the general formula (II), or (iii) ester imide of the general formula (III) with H2 in the presence of a hydrogenation catalyst, where catalyst and amide acetal or ketene N,O-acetal or ester imide are used in a molar ratio of from 1:10 to 1:100 000 and where a hydrogen pressure of from 0.1 bar to 200 bar is established and where a temperature in the range of from 0° C. to 250° C. is established.
    Type: Application
    Filed: October 15, 2014
    Publication date: September 15, 2016
    Applicant: Evonik Degussa GmbH
    Inventor: Renat Kadyrov
  • Patent number: 9309344
    Abstract: The present invention relates to a process for preparing polymers by means of ring-opening metathetic polymerization, consisting of the following steps: a) providing a reaction mixture consisting of a cycloalkene or a cycloalkene mixture, b) adding a ruthenium compound of the general formula RuX1X2L1aL2b (I) where a=0 or 1, b=1 or 2, such that a+b=2; X1, X2=independently selected anionic ligands; L1=uncharged ?-binding ligand; L2=N-heterocyclic carbene of the formula IIa, IIb or IIc; c) adding a chain transfer agent in a molar ratio in the range from 1:5 to 1:1000 based on the cycloalkene or the sum total of the cycloalkenes in the cycloalkene mixture, d) converting at a temperature within a range from 0° C. to 250° C.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: April 12, 2016
    Assignee: Evonik Degussa GmbH
    Inventors: Renat Kadyrov, Christa Dumrath, Matthias Beller, Andreas Dumrath, Helfried Neumann, Stephanie Klein
  • Publication number: 20160031845
    Abstract: The present invention relates to a process for preparing olefins by means of metathesis, which comprises the following steps a. provision of an olefin reaction mixture containing at least one olefin, b. addition of a ruthenium compound of the general formula [RuX2L1xL2y]z (I), where X=anionic ligand; L1=uncharged ?-bonding ligand; L2=uncharged electron donor ligand; x=0, 1; y=1, 2, 3; z=1, 2, c. addition of a Lewis acid and/or an anionic, noncoordinating salt, d. reaction at temperatures in the range from 30° C. to 140° C., where no addition of an alkyne or alkynol is carried out. The invention further relates to the use of this process in metathesis reactions.
    Type: Application
    Filed: February 13, 2014
    Publication date: February 4, 2016
    Inventors: Renat Kadyrov, Christa Dumrath, Andreas Dumrath, Helfried Neumann, Matthias Beller
  • Publication number: 20150322079
    Abstract: The present invention relates to a method for producing metathesis products comprising contacting metathesis starting materials under metathesis conditions with a metathesis catalyst, wherein the metathesis catalyst is employed in an amount of from 0.0001 mol-% to 1 mol-% based on half of the sum of the reactive double bonds of the metathesis starting materials and wherein the ethylene or propylene generated in the course of the reaction is removed from the reaction mixture.
    Type: Application
    Filed: September 5, 2013
    Publication date: November 12, 2015
    Applicant: EVONIK INDUSTRIES AG
    Inventor: Renat Kadyrov
  • Publication number: 20150299362
    Abstract: The present invention relates to a process for preparing polymers by means of ring-opening metathetic polymerization, consisting of the following steps: a) providing a reaction mixture consisting of a cycloalkene or a cycloalkene mixture, b) adding a ruthenium compound of the general formula RuX1X2L1aL2b (I) where a=0 or 1, b=1 or 2, such that a+b=2; X1, X2=independently selected anionic ligands; L1=uncharged ?-binding ligand; L2=N-heterocyclic carbene of the formula IIa, IIb or IIc; c) adding a chain transfer agent in a molar ratio in the range from 1:5 to 1:1000 based on the cycloalkene or the sum total of the cycloalkenes in the cycloalkene mixture, d) converting at a temperature within a range from 0° C. to 250° C.
    Type: Application
    Filed: April 10, 2015
    Publication date: October 22, 2015
    Applicant: EVONIK INDUSTRIES AG
    Inventors: RENAT KADYROV, CHRISTA DUMRATH, MATTHIAS BELLER, ANDREAS DUMRATH, HELFRIED NEUMANN, STEPHANIE KLEIN
  • Patent number: 8969624
    Abstract: The invention is directed to a phosphine compound represented by general formula (1) wherein R? and R? independently are selected from alkyl, cycloalkyl and 2-furyl radicals, or R? and R? are joined together to form with the phosphorous atom a carbon-phosphorous monocycle comprising at least 3 carbon atoms or a carbon-phosphorous bicycle; the alkyl radicals, cycloalkyl radicals, and carbon-phosphorous monocycle being unsubstituted or substituted by at least one radical selected from the group of alkyl, cycloalkyl, aryl, alkoxy, and aryloxy radicals; Cps is a partially substituted or completely substituted cyclopentadien-1-yl group, including substitutions resulting in a fused ring system, and wherein a substitution at the 1-position of the cyclopentadien-1-yl group is mandatory when the cyclopentadien-1-yl group is not part of a fused ring system or is part of an indenyl group. Also claimed is the use of these phosphines as ligands in catalytic reactions and the preparation of these phosphines.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: March 3, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Herbert Plenio, Christoph Fleckenstein, Renat Kadyrov, Juan Almena, Axel Monsees, Thomas Riermeier
  • Patent number: 8816114
    Abstract: The invention is directed to aryl alkylidene ruthenium complexes and the use of these complexes as catalysts in metathesis reactions.
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: August 26, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Renat Kadyrov, Anna Christoffers
  • Publication number: 20140058101
    Abstract: The invention is directed to a phosphine compound represented by general formula (1) wherein R? and R? independently are selected from alkyl, cycloalkyl and 2-furyl radicals, or R? and R? are joined together to form with the phosphorous atom a carbon-phosphorous monocycle comprising at least 3 carbon atoms or a carbon-phosphorous bicycle; the alkyl radicals, cycloalkyl radicals, and carbon-phosphorous monocycle being unsubstituted or substituted by at least one radical selected from the group of alkyl, cycloalkyl, aryl, alkoxy, and aryloxy radicals; Cps is a partially substituted or completely substituted cyclopentadien-1-yl group, including substitutions resulting in a fused ring system, and wherein a substitution at the 1-position of the cyclopentadien-1-yl group is mandatory when the cyclopentadien-1-yl group is not part of a fused ring system or is part of an indenyl group. Also claimed is the use of these phosphines as ligands in catalytic reactions and the preparation of these phosphines.
    Type: Application
    Filed: October 29, 2013
    Publication date: February 27, 2014
    Applicant: Evonik Degussa GmbH
    Inventors: Herbert Plenio, Christoph Fleckenstein, Renat Kadyrov, Juan Almena, Axel Monsees, Thomas Riermeier
  • Patent number: 8629134
    Abstract: This invention relates to a process for the hydrogenation of a ketooxime to selectively form an aminoalcohol stereoisomer, and, in particular, to a process for the hydrogenation of 4,5-dihydro-imidazo[4,5,1-jk][1]benzazepin-2,6,7[1H]-trione-6-oxime or a salt thereof to selectively form a stereoisomer of 6-amino-7-hydroxy-4,5,6,7-tetrahydro-imidazo[4,5,1-jk][1]-benzazepin-2[1H]-one or a salt thereof. This invention also relates to the use of the 6-amino-7-hydroxy-4,5,6,7-tetrahydro-imidazo[4,5,1-jk][1]-benzazepin-2[1H]-one hydrogenation product or a salt thereof to selectively make a stereoisomer of zilpaterol or a salt thereof, as well as the use of such a zilpaterol stereoisomer or salt in methods of treatment and medicaments for animals.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: January 14, 2014
    Assignee: Intervet International B.V.
    Inventors: Juan Jose Almena-Perea, Monika Brink, Gerhard Geiβ, Renat Kadyrov, Thorsten Meyer
  • Patent number: 8618328
    Abstract: Disclosed herein are phosphine compounds represented by the general formula (4): and corresponding phosphonium salts represented by the general formula (4a): Also disclosed are processes for the preparation of these phosphines and phosphonium salts as well as their use as ligands in catalytic reactions.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: December 31, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Herbert Plenio, Christoph Fleckenstein, Renat Kadyrov, Juan Almena, Axel Monsees, Thomas Riermeier
  • Publication number: 20130338370
    Abstract: The invention is directed to aryl alkylidene ruthenium complexes and the use of these complexes as catalysts in metathesis reactions.
    Type: Application
    Filed: August 5, 2013
    Publication date: December 19, 2013
    Applicant: Evonik Degussa GmbH
    Inventors: Renat Kadyrov, Anna Rosiak
  • Patent number: 8501975
    Abstract: A method of manufacturing ruthenium carbene complexes and novel aryl alkylidene ruthenium complexes based on the method, the complexes able to used as catalysts in metathesis reactions.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: August 6, 2013
    Assignee: Evonik Degussa GmbH
    Inventors: Renat Kadyrov, Anna Rosiak
  • Publication number: 20120245348
    Abstract: Disclosed herein are phosphine compounds represented by the general formula (4): and corresponding phosphonium salts represented by the general formula (4a): Also disclosed are processes for the preparation of these phosphines and phosphonium salts as well as their use as ligands in catalytic reactions.
    Type: Application
    Filed: April 2, 2012
    Publication date: September 27, 2012
    Inventors: Herbert PLENIO, Christoph FLECKENSTEIN, Renat KADYROV, Juan ALMENA, Axel MONSEES, Thomas RIERMEIER
  • Patent number: 8183382
    Abstract: The present invention relates to novel transition metal complexes of the formula (I) to a process for preparing these transition metal complexes and to the use of the transition metal complexes as catalysts in metathesis reactions.
    Type: Grant
    Filed: April 24, 2008
    Date of Patent: May 22, 2012
    Assignee: Evonik Degussa GmbH
    Inventors: Renat Kadyrov, Anna Szadkowska, Karol Grela, Michal Barbasiewicz
  • Publication number: 20110166360
    Abstract: A process for preparing the S or R enantiomer of a compound of formula A, the process comprising subjecting a compound of formula B to asymmetric hydrogenation in the presence of a chiral transition metal catalyst and a source of hydrogen, wherein: X is CH2, oxygen or sulphur; R1, R2 and R3 are the same or different and signify hydrogen, halogen, alkyl, alkyloxy, hydroxy, nitro, alkylcarbonylamino, alkylamino or dialkylamino group; and R4 is alkyl or aryl, the transition metal catalyst comprising a chiral ligand having the formula wherein each R and R? independently represents alkyl, aryl, aralkyl, alkenyl, alkynyl, alkoxy, aryloxy, alkylthio, arylthio, unsubstituted or substituted cyclic moiety selected from a group consisting of monocyclic or polycyclic saturated or partially saturated carbocyclic or heterocyclic, aromatic or heteroaromatic rings said rings comprising from 4 to 8 atoms and comprising from 0 to 3 heteroatoms, wherein: the term alkyl means hydrocarbon chains, straight or branched, con
    Type: Application
    Filed: March 13, 2009
    Publication date: July 7, 2011
    Applicant: BIAL - PORTELA & CA, S.A.
    Inventors: Alexander Beliaev, David Alexander Learmonth, Juan José Almena Perea, Gerhard Geib, Patrick Hitzel, Renat Kadyrov, David Voigtlaender