Patents by Inventor David E. Podhorez

David E. Podhorez 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: 9199964
    Abstract: 3-(3-Chloro-1H-pyrazol-1-yl)pyridine is prepared by cyclizing 3-hydrazinopyridine.dihydrochloride with acrylonitrile to provide 1-(pyridin-3-yl)-4,5-dihydro-1H-pyrazol-3-amine, by oxidizing to provide 3-(3-amino-1H-pyrazol-1-yl)pyridine, and by converting the amino group to a chloro group by a Sandmeyer reaction.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: December 1, 2015
    Assignee: Dow AgroSciences LLC
    Inventors: Qiang Yang, Beth Lorsbach, Xiaoyong Li, Gary Roth, David E. Podhorez
  • Publication number: 20150250177
    Abstract: The present application provides processes for making pesticidal compounds and compounds useful both as pesticides and in the making of pesticidal compounds.
    Type: Application
    Filed: May 19, 2015
    Publication date: September 10, 2015
    Inventors: Qiang YANG, Beth LORSBACH, Gregory WHITEKER, Gary ROTH, Carl DeAMICIS, Daniel I. KNUEPPEL, Ann M. BUYSSE, Kaitlyn GRAY, Xiaoyong LI, Joseck M. MUHUHI, Ronald ROSS, JR., David E. PODHOREZ, Yu ZHANG
  • Patent number: 9115115
    Abstract: 3-(3-chloro-1H-pyrazol-1-yl)pyridine is prepared by cyclizing 3-hydrazinopyridine-•dihydrochloride with a dialkyl maleate to provide an alkyl 5-oxo-2-(pyridin-3-yl)pyrazolidine-3-carboxylate, by chlorinating to provide an alkyl 3-chloro-1-(pyridin-3-yl)-4,5-dihydro-1H-pyrazole-5-carboxylate, by oxidizing to provide an alkyl 3-chloro-1-(pyridin-3-yl)-1H-pyrazole-5-carboxylate, by converting the ester to the carboxylic acid by hydrolysis to provide 3-chloro-1-(pyridin-3-yl)-1H-pyrazole-5-carboxylic acid hydrochloride, and by removing the carboxylic acid by a decarboxylation reaction.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: August 25, 2015
    Assignee: Dow AgroSciences LLC
    Inventors: Qiang Yang, Beth Lorsbach, David E. Podhorez
  • Patent number: 9108946
    Abstract: The present application provides processes for making pesticidal compounds and compounds useful both as pesticides and in the making of pesticidal compounds.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: August 18, 2015
    Assignee: Dow AgroSciences LLC
    Inventors: Qiang Yang, Beth Lorsbach, Gregory T. Whiteker, Gary Roth, Carl DeAmicis, Daniel I. Knueppel, Ann M. Buysse, Kaitlyn Gray, Xiaoyong Li, Joseck M. Muhuhi, Ronald Ross, Jr., David E. Podhorez, Yu Zhang
  • Publication number: 20150191428
    Abstract: Provided herein are fluoropicolinoyl fluorides and processes for their preparation. In some embodiments, provided herein is a process for the preparation of 5-fluoro-6-aryl-picolinoyl fluorides from chloropicolinoyl chlorides.
    Type: Application
    Filed: March 24, 2015
    Publication date: July 9, 2015
    Inventors: James M. Renga, Yang Cheng, Joseck M. Muhuhi, David E. Podhorez, Gary A. Roth, Scott P. West, Gregory T. Whiteker, Yuanming Zhu
  • Patent number: 9045427
    Abstract: Provided herein are fluoropicolinoyl fluorides and processes for their preparation. In some embodiments, provided herein is a process for the preparation of 5-fluoro-6-aryl-picolinoyl fluorides from chloropicolinoyl chlorides.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: June 2, 2015
    Assignee: Dow AgroSciences LLC
    Inventors: James M. Renga, Yang Cheng, Joseck M. Muhuhi, David E. Podhorez, Gary A. Roth, Scott P. West, Gregory T. Whiteker, Yuanming Zhu
  • Patent number: 9024031
    Abstract: 3-(3-chloro-1H-pyrazol-1-yl)pyridine is prepared by cyclizing 3-hydrazinopyridine.dihydrochloride with a dialkyl maleate to provide an alkyl 5-oxo-2-(pyridin-3-yl)pyrazolidine-3-carboxylate, by chlorinating to provide an alkyl 3-chloro-1-(pyridin-3-yl)-4,5-dihydro-1H-pyrazole-5-carboxylate, by oxidizing to provide an alkyl 3-chloro-1-(pyridin-3-yl)-1H-pyrazole-5-carboxylate, by converting the ester to the carboxylic acid by hydrolysis to provide 3-chloro-1-(pyridin-3-yl)-1H-pyrazole-5-carboxylic acid hydrochloride, and by removing the carboxylic acid by a decarboxylation reaction.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: May 5, 2015
    Assignee: Dow AgroSciences LLC
    Inventors: Qiang Yang, Beth Lorsbach, David E. Podhorez
  • Publication number: 20150112078
    Abstract: The present application provides processes for making pesticidal compounds and compounds useful both as pesticides and in the making of pesticidal compounds.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 23, 2015
    Inventors: Qiang YANG, Beth LORSBACH, Gregory T. WHITEKER, Gary ROTH, Carl DeAMICIS, Daniel I. KNUEPPEL, Ann M. BUYSSE, Kaitlyn GRAY, Xiaoyong LI, Joseck M. MUHUHI, Ronald ROSS, JR., David E. PODHOREZ, Yu ZHANG
  • Patent number: 8993772
    Abstract: 4-Amino-5-fluoro-3-halo-6-(substituted)picolinates are conveniently prepared from 4,5,6-trichloropicolinonitrile by a series of steps involving fluorine exchange, amination, halogen exchange, halogenation, nitrile hydrolysis, esterification, and transition metal assisted coupling.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: March 31, 2015
    Assignee: Dow AgroSciences, LLC.
    Inventors: Yuanming Zhu, Gregory T. Whiteker, James M. Renga, Kim E. Arndt, Gary Roth, David E. Podhorez, Scott P. West, Yang Cheng
  • Patent number: 8927731
    Abstract: 4-Amino-5-fluoro-3-halo-6-(substituted)picolinates are conveniently prepared from 4,5,6-trichloropicolinates by a series of steps involving fluorine exchange, amination, halogen exchange, halogenation and transition metal assisted coupling.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: January 6, 2015
    Assignee: Dow AgroSciences, LLC.
    Inventors: Gregory T. Whiteker, James M. Renga, Yuanming Zhu, Christian T. Lowe, Thomas L. Siddall, David E. Podhorez, Gary Roth, Scott P. West
  • Patent number: 8871943
    Abstract: Provided herein are processes for the preparation of 4-amino-5-fluoro-3-halo-6-(substituted)picolinates comprising a step of converting chloropicolinoyl chlorides to fluoropicolinoyl fluorides.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: October 28, 2014
    Assignee: Dow AgroSciences, LLC.
    Inventors: James M. Renga, Yang Cheng, Joseck M. Muhuhi, David E. Podhorez, Gary A. Roth, Scott P. West, Gregory T. Whiteker, Yuanming Zhu
  • Publication number: 20140206881
    Abstract: 4-Amino-5-fluoro-3-halo-6-(substituted)picolinates are conveniently prepared from 4,5,6-trichloropicolinonitrile by a series of steps involving fluorine exchange, amination, halogen exchange, halogenation, nitrile hydrolysis, esterification, and transition metal assisted coupling.
    Type: Application
    Filed: March 24, 2014
    Publication date: July 24, 2014
    Applicant: DOW AGROSCIENCES LLC
    Inventors: Yuanming Zhu, Gregory T. Whiteker, James M. Renga, Kim E. Arndt, Gary Roth, David E. Podhorez, Scott P. West, Yang Cheng
  • Patent number: 8754231
    Abstract: 4-Amino-5-fluoro-3-halo-6-(substituted)picolinates are conveniently prepared from 4,5,6-trichloropicolinonitrile by a series of steps involving fluorine exchange, amination, halogen exchange, halogenation, nitrile hydrolysis, esterification, and transition metal assisted coupling.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: June 17, 2014
    Assignee: Dow AgroSciences, LLC.
    Inventors: Yuanming Zhu, Gregory T. Whiteker, James M. Renga, Gary A. Roth, David E. Podhorez, Scott P. West, Cynthia Arndt
  • Publication number: 20140039196
    Abstract: 4-Amino-5-fluoro-3-halo-6-(substituted)picolinates are conveniently prepared from 4,5,6-trichloropicolinates by a series of steps involving fluorine exchange, amination, halogen exchange, halogenation and transition metal assisted coupling.
    Type: Application
    Filed: October 9, 2013
    Publication date: February 6, 2014
    Applicant: DOW AGROSCIENCES LLC
    Inventors: Gregory T. Whiteker, Kim E. Arndt, James M. Renga, Yuanming Zhu, Christian T. Lowe, Thomas L. Siddall, David E. Podhorez, Gary Roth, Scott P. West
  • Publication number: 20140031556
    Abstract: Provided herein are processes for the preparation of 4-amino-5-fluoro-3-halo-6-(substituted)picolinates comprising a step of converting chloropicolinoyl chlorides to fluoropicolinoyl fluorides.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 30, 2014
    Applicant: Dow AgroSciences LLC
    Inventors: James M. Renga, Yang Cheng, Joseck M. Muhuhi, David E. Podhorez, Gary A. Roth, Scott P. West, Gregory T. Whiteker, Yuanming Zhu
  • Publication number: 20140031558
    Abstract: Provided herein are fluoropicolinoyl fluorides and processes for their preparation. In some embodiments, provided herein is a process for the preparation of 5-fluoro-6-aryl-picolinoyl fluorides from chloropicolinoyl chlorides.
    Type: Application
    Filed: July 23, 2013
    Publication date: January 30, 2014
    Applicant: Dow AgroSciences LLC
    Inventors: James M. Renga, Yang Cheng, Joseck M. Muhuhi, David E. Podhorez, Gary A. Roth, Scott P. West, Gregory T. Whiteker, Yuanming Zhu
  • Patent number: 8609855
    Abstract: 4-Amino-5-fluoro-3-halo-6-(substituted)picolinates are conveniently prepared from 4,5,6-trichloropicolinates by a series of steps involving fluorine exchange, amination, halogen exchange, halogenation and transition metal assisted coupling.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: December 17, 2013
    Assignee: Dow AgroSciences, LLC.
    Inventors: Gregory T. Whiteker, James M. Renga, Yuanming Zhu, Christian T. Lowe, Thomas L. Siddall, David E. Podhorez, Gary A. Roth, Scott P. West, Cynthia Arndt
  • Publication number: 20120190859
    Abstract: 4-Amino-5-fluoro-3-halo-6-(substituted)picolinates are conveniently prepared from 4,5,6-trichloropicolinonitrile by a series of steps involving fluorine exchange, amination, halogen exchange, halogenation, nitrile hydrolysis, esterification, and transition metal assisted coupling.
    Type: Application
    Filed: January 24, 2012
    Publication date: July 26, 2012
    Applicant: Dow AgroSciences LLC
    Inventors: Yuanming Zhu, Gregory T. Whiteker, James M. Renga, Kim E. Arndt, Gary A. Roth, David E. Podhorez, Scott P. West, Cynthia Arndt
  • Publication number: 20120190860
    Abstract: 4-Amino-5-fluoro-3-halo-6-(substituted)picolinates are conveniently prepared from 4,5,6-trichloropicolinates by a series of steps involving fluorine exchange, amination, halogen exchange, halogenation and transition metal assisted coupling.
    Type: Application
    Filed: January 24, 2012
    Publication date: July 26, 2012
    Applicant: DOW AGROSCIENCES LLC
    Inventors: Gregory T. Whiteker, Kim E. Arndt, James M. Renga, Yuanming Zhu, Christian T. Lowe, Thomas L. Siddall, David E. Podhorez, Gary A. Roth, Scott P. West, Cynthia Arndt
  • Publication number: 20120165538
    Abstract: Cyano-substituted sulfilimines and sulfoximines are produced efficiently and in high yield from the corresponding sulfides by reaction with cyanamide and hypochlorite.
    Type: Application
    Filed: December 21, 2011
    Publication date: June 28, 2012
    Applicant: Dow AgroSciences LLC
    Inventors: Douglas C. Bland, Timothy J. Adaway, David E. Podhorez