Patents by Inventor DAVID P. SCHUMAN

DAVID P. SCHUMAN 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: 20210323983
    Abstract: The present disclosure is directed to methods of silylating organic substrates containing C—H or O—H bonds. In some embodiments, the methods use compositions that are derived from the preconditioning of mixtures of hydrosilanes or organodisilanes with bases, including metal hydroxide, metal alkoxide, metal silanoates, potassium amides, and/or graphitic potassium bases.
    Type: Application
    Filed: May 27, 2021
    Publication date: October 21, 2021
    Inventors: Anton Toutov, Wenbo Liu, David P. Schuman, Brian M. Stoltz, Robert H. Grubbs
  • Patent number: 11028107
    Abstract: The present invention is directed to compositions for silylating organic substrates containing C—H or O—H bonds, especially heteroaromatic substrates. The compositions are derived from the preconditioning of mixtures of hydrosilanes or organodisilanes with bases, including metal hydroxide and metal alkoxide bases. In some embodiments, the preconditioning results in the formation of reactive silicon hydride species.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: June 8, 2021
    Assignee: California Institute of Technology
    Inventors: Anton Toutov, Wenbo Liu, David P. Schuman, Brian M. Stoltz, Robert H. Grubbs
  • Patent number: 9764995
    Abstract: The present invention describes chemical systems and methods for silylating heteroaromatic organic substrates using at least alkoxide base, preferably a potassium alkoxide base and at least one organodisilane and (b) at least one alkoxide base. Both methods and compositions for affecting these transformations are disclosed.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: September 19, 2017
    Assignee: California Institute of Technology
    Inventors: Anton Toutov, Wenbo Liu, Brian M. Stoltz, Robert H. Grubbs, Kerry Betz, David P. Schuman
  • Publication number: 20170240571
    Abstract: The present invention is directed to compositions for silylating organic substrates containing C—H or O—H bonds, especially heteroaromatic substrates. The compositions are derived from the preconditioning of mixtures of hydrosilanes or organodisilanes with bases, including metal hydroxide and metal alkoxide bases. In some embodiments, the preconditioning results in the formation of reactive silicon hydride species.
    Type: Application
    Filed: February 22, 2017
    Publication date: August 24, 2017
    Inventors: ANTON TOUTOV, WENBO LIU, DAVID P. SCHUMAN, BRIAN M. STOLTZ, ROBERT H. GRUBBS H. GRUBBS
  • Publication number: 20170088562
    Abstract: The present invention describes chemical systems and methods for silylating heteroaromatic organic substrates using at least alkoxide base, preferably a potassium alkoxide base and at least one organodisilane and (b) at least one alkoxide base. Both methods and compositions for affecting these transformations are disclosed.
    Type: Application
    Filed: December 12, 2016
    Publication date: March 30, 2017
    Inventors: ANTON TOUTOV, WENBO LIU, BRIAN M. STOLTZ, ROBERT H. GRUBBS, KERRY BETZ, DAVID P. SCHUMAN
  • Patent number: 9556080
    Abstract: The present invention describes chemical systems and methods for silylating heteroaromatic organic substrates, said system consisting essentially of a mixture of (a) at least one organodisilane and (b) at least alkoxide base, preferably a potassium alkoxide base, and said methods comprising contacting a quantity of the organic substrate with a mixture consisting essentially of (a) at least one organodisilane and (b) at least one alkoxide base, preferably a potassium alkoxide, under conditions sufficient to silylate the heteroaromatic substrate.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: January 31, 2017
    Assignee: California Institute of Technology
    Inventors: Anton Toutov, Wenbo Liu, Brian M. Stoltz, Robert H. Grubbs, Kerry Betz, David P. Schuman
  • Publication number: 20160176772
    Abstract: The present invention describes chemical systems and methods for silylating heteroaromatic organic substrates, said system consisting essentially of a mixture of (a) at least one organodisilane and (b) at least alkoxide base, preferably a potassium alkoxide base, and said methods comprising contacting a quantity of the organic substrate with a mixture consisting essentially of (a) at least one organodisilane and (b) at least one alkoxide base, preferably a potassium alkoxide, under conditions sufficient to silylate the heteroaromatic substrate.
    Type: Application
    Filed: December 17, 2015
    Publication date: June 23, 2016
    Inventors: ANTON TOUTOV, WENBO LIU, BRIAN M. STOLTZ, ROBERT H. GRUBBS, KERRY BETZ, DAVID P. SCHUMAN