Patents by Inventor Rowan Mark Littlefield

Rowan Mark Littlefield 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).

  • Photochemical methods of making cyclobutane boronates and related compounds
    Patent number: 11168097
    Abstract: The present technology relates generally cyclobutane boronates, including methods of preparation by exposing a mixture of a compound of Formula I in a solvent and a catalytic amount of a visible light sensitizer to provide a compound of Formula II, stereoisomers thereof, and/or salts of any of the foregoing. The cyclobutane boronate compounds are useful intermediates in the preparation of pharmaceutically active compounds as well as other useful compounds.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: November 9, 2021
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Tehshik Peter Yoon, Spencer Owen Scholz, Rowan Mark Littlefield, Niecia Elizabeth Flikweert
  • PHOTOCHEMICAL METHODS OF MAKING CYCLOBUTANE BORONATES AND RELATED COMPOUNDS
    Publication number: 20200223870
    Abstract: The present technology relates generally cyclobutane boronates, including methods of preparation by exposing a mixture of a compound of Formula I in a solvent and a catalytic amount of a visible light sensitizer to provide a compound of Formula II, stereoisomers thereof, and/or salts of any of the foregoing. The cyclobutane boronate compounds are useful intermediates in the preparation of pharmaceutically active compounds as well as other useful compounds.
    Type: Application
    Filed: March 18, 2020
    Publication date: July 16, 2020
    Applicant: Wisconsin Alumni Research Foundation
    Inventors: Tehshik Peter Yoon, Spencer Owen Scholz, Rowan Mark Littlefield, Niecia Elizabeth Flikweert
  • Photochemical methods of making cyclobutane boronates and related compounds
    Patent number: 10618917
    Abstract: The present technology relates generally cyclobutane boronates, including methods of preparation by exposing a mixture of a compound of Formula I in a solvent and a catalytic amount of a visible light sensitizer to provide a compound of Formula II, stereoisomers thereof, and/or salts of any of the foregoing. The cyclobutane boronate compounds are useful intermediates in the preparation of pharmaceutically active compounds as well as other useful compounds.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: April 14, 2020
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Tehshik Peter Yoon, Spencer Owen Scholz, Rowan Mark Littlefield, Niecia Elizabeth Flikweert
  • PHOTOCHEMICAL METHODS OF MAKING CYCLOBUTANE BORONATES AND RELATED COMPOUNDS
    Publication number: 20190040085
    Abstract: The present technology relates generally cyclobutane boronates, including methods of preparation by exposing a mixture of a compound of Formula I in a solvent and a catalytic amount of a visible light sensitizer to provide a compound of Formula II, stereoisomers thereof, and/or salts of any of the foregoing. The cyclobutane boronate compounds are useful intermediates in the preparation of pharmaceutically active compounds as well as other other useful compounds.
    Type: Application
    Filed: August 2, 2018
    Publication date: February 7, 2019
    Applicant: Wisconsin Alumni Research Foundation
    Inventors: Tehshik Peter Yoon, Spencer Owen Scholz, Rowan Mark Littlefield, Niecia Elizabeth Flikweert