Patents by Inventor SAMEERA SENAWEERA

SAMEERA SENAWEERA 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: 20240067621
    Abstract: Polyfluorinated compounds are disclosed, including polyfluorinated cannabinoid and cannabinoid-like compounds. Also disclosed are methods of producing the polyfluorinated compounds.
    Type: Application
    Filed: February 22, 2022
    Publication date: February 29, 2024
    Inventors: Jimmie D. WEAVER, Jon DAY, Sascha GROTJAHN, Sameera SENAWEERA, Burkhard KOENIG
  • Patent number: 11117880
    Abstract: This disclosure relates generally to the facile and selective mono-perfluoro and poly-fluoroarylation of Meldrum's acid to generate a versatile synthon for highly fluorinated alpha-phenyl acetic acid derivatives which provide straightforward access to fluorinated building blocks. The reaction takes place quickly and all products were isolated without the need for chromatography. An embodiment provides an alternative strategy to access alpha-arylated Meldrum's acids which avoids the need for aryl-Pb(IV) salts or diaryliodonium salts and provides access to the tertiary product which was not previously synthetically accessible. The synthetic versatility and utility of the Meldrum's acid products is demonstrated by subjecting the products to several derivatizations of the Meldrum's acid products as well as photocatalytic hydrodefluorination which provide access to difficult but valuable synthetic targets such as multifluorinated aromatics.
    Type: Grant
    Filed: May 6, 2019
    Date of Patent: September 14, 2021
    Assignee: The Board of Regents for Oklahoma State University
    Inventors: Jimmie Dean Weaver, Sameera Senaweera
  • Publication number: 20190256488
    Abstract: This disclosure relates generally to the facile and selective mono-perfluoro and poly-fluoroarylation of Meldrum's acid to generate a versatile synthon for highly fluorinated alpha-phenyl acetic acid derivatives which provide straightforward access to fluorinated building blocks. The reaction takes place quickly and all products were isolated without the need for chromatography. An embodiment provides an alternative strategy to access alpha-arylated Meldrum's acids which avoids the need for aryl-Pb(IV) salts or diaryliodonium salts and provides access to the tertiary product which was not previously synthetically accessible. The synthetic versatility and utility of the Meldrum's acid products is demonstrated by subjecting the products to several derivatizations of the Meldrum's acid products as well as photocatalytic hydrodefluorination which provide access to difficult but valuable synthetic targets such as multifluorinated aromatics.
    Type: Application
    Filed: May 6, 2019
    Publication date: August 22, 2019
    Inventors: Jimmie Dean Weaver, Sameera SENAWEERA
  • Patent number: 10316014
    Abstract: This disclosure relates generally to the facile and selective mono-perfluoro and -polyfluoroarylation of Meldrum's acid to generate a versatile synthon for highly fluorinated alpha-phenyl acetic acid derivatives which provide straightforward access to fluorinated building blocks. The reaction takes place quickly and all products were isolated without the need for chromatography. An embodiment provides an alternative strategy to access alpha-arylated Meldrum's acids which avoids the need for aryl-Pb(IV) salts or diaryliodonium salts and provides access to the tertiary product which was not previously synthetically accessible. The synthetic versatility and utility of the Meldrum's acid products is demonstrated by subjecting the products to several derivatizations of the Meldrum's acid products as well as photocatalytic hydrodefluorination which provide access to difficult but valuable synthetic targets such as multifluorinated aromatics.
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: June 11, 2019
    Assignee: The Board of Regents for Oklahoma State University
    Inventors: Jimmie Dean Weaver, Sameera Senaweera
  • Publication number: 20160075678
    Abstract: This disclosure relates generally to the facile and selective mono-perfluoro and polyfluoroarylation of Meldrum's acid to generate a versatile synthon for highly fluorinated alpha-phenyl acetic acid derivatives which provide straightforward access to fluorinated building blocks. The reaction takes place quickly and all products were isolated without the need for chromatography. An embodiment provides an alternative strategy to access alpha-arylated Meldrum's acids which avoids the need for aryl-Pb(IV) salts or diaryliodonium salts and provides access to the tertiary product which was not previously synthetically accessible. The synthetic versatility and utility of the Meldrum's acid products is demonstrated by subjecting the products to several derivatizations of the Meldrum's acid products as well as photocatalytic hydrodefluorination which provide access to difficult but valuable synthetic targets such as multifluorinated aromatics.
    Type: Application
    Filed: August 31, 2015
    Publication date: March 17, 2016
    Inventors: Jimmie Dean Weaver, SAMEERA SENAWEERA