Patents by Inventor Michael Gullo

Michael Gullo 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 of preparation of florasulam
    Patent number: 12134618
    Abstract: The present disclosure concerns a method for preparing florasulam which involves treating a solution of 2,6-difluoroaniline in 1,2-propylene glycol with: a) sulfonyl chloride III and then b) a base to provide, after workup and isolation, florasulam (I) in yields of about 65-85%. The treatment of 2,6-difluoroaniline with sulfonyl chloride III and the base are conducted by controlled additions.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: November 5, 2024
    Assignee: Corteva Agriscience LLC
    Inventors: Jossian Oppenheimer, Michael Gullo, David E. Podhorez, Justin A. Alberts
  • Preparation of sulfonamide herbicide process intermediates
    Patent number: 11390587
    Abstract: Improved methods for preparing chemical precursors to sulfonyl chloride III, which are important intermediates in the preparation of pyroxsulam herbicide are provided. Specifically, these precursors are compounds of Formulas VII and/or VIII, and IX, wherein R is a C1-C6 alkyl, R1 is a C1-C6 alkyl, X is Cl or OH, Y is halogen, OH, or OR2, and R2 is a C1-C6 alkyl.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: July 19, 2022
    Assignee: Corteva Agriscience LLC
    Inventors: Jossian Oppenheimer, Matthias S. Ober, Mark E. Ondari, Michael Gullo, Jayachandran Devaraj, Amaruka Hazari, Will Kruper
  • PREPARATION OF SULFONAMIDE HERBICIDE PROCESS INTERMEDIATES
    Publication number: 20220041554
    Abstract: Improved methods for preparing chemical precursors to sulfonyl chloride III, which are important intermediates in the preparation of pyroxsulam herbicide are provided. Specifically, these precursors are compounds of Formulas VII and/or VIII, and IX, wherein R is a C1-C6 alkyl, R1 is a C1-C6 alkyl, X is Cl or OH, Y is halogen, OH, or OR2, and R2 is a C1-C6 alkyl.
    Type: Application
    Filed: December 20, 2019
    Publication date: February 10, 2022
    Applicant: Corteva Agriscience LLC
    Inventors: Jossian Oppenheimer, Matthias S. Ober, Mark E. Ondari, Michael Gullo, Jayachandran Devaraj, Amaruka Hazari, Will Kruper
  • METHOD OF PREPARATION OF FLORASULAM
    Publication number: 20210198262
    Abstract: The present disclosure concerns a method for preparing florasulam which involves treating a solution of 2,6-difluoroaniline in 1,2-propylene glycol with: a) sulfonyl chloride III and then b) a base to provide, after workup and isolation, florasulam (I) in yields of about 65-85%. The treatment of 2,6-difluoroaniline with sulfonyl chloride III and the base are conducted by controlled additions.
    Type: Application
    Filed: October 10, 2018
    Publication date: July 1, 2021
    Applicant: Dow AgroSciences LLC
    Inventors: Jossian Oppenheimer, Michael Gullo, David E. Podhorez, Justin A. Alberts
  • METHOD OF PREPARATION OF FLORASULAM
    Publication number: 20190106428
    Abstract: The present disclosure concerns a method for preparing florasulam which involves treating a solution of 2,6-difluoroaniline in 1,2-propylene glycol with: a) sulfonyl chloride III and then b) a base to provide, after workup and isolation, florasulam (I) in yields of about 65-85%. The treatment of 2,6-difluoroaniline with sulfonyl chloride III and the base are conducted by controlled additions.
    Type: Application
    Filed: October 10, 2018
    Publication date: April 11, 2019
    Applicant: Dow AgroSciences LLC
    Inventors: Jossian Oppenheimer, Michael Gullo, David E. Podhorez, Justin A. Alberts
  • Process for the preparation of 4-trifluoromethyl-2(1H)-pyridinone
    Publication number: 20050288511
    Abstract: 4-Trifluoromethyl-2(1H)-pyridinone is prepared by reaction of 4-alkoxy-1,1,1-trifluorobut-3-en-2-one or 4,4-dialkoxy-1,1,1-trifluorobutan-2-one with a trialkyl phosphonoacetate followed by cyclization.
    Type: Application
    Filed: June 24, 2005
    Publication date: December 29, 2005
    Inventors: Christopher Hamilton, Michael Gullo, Michael Gonzalez, Gary Roth, David Gorman