Patents by Inventor Michal Szostak

Michal Szostak 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: 20250188106
    Abstract: The present disclosure provides substituted imidazo[1,5-a]pyridine N-heterocyclic carbene (NHC) ligands, catalyst complexes thereof, and methods using same. The present disclosure further provides synthetic methods of preparing N-heterocyclic carbene ligands and catalyst complexes thereof.
    Type: Application
    Filed: March 9, 2023
    Publication date: June 12, 2025
    Applicant: Rutgers, The State University of New Jersey
    Inventors: Michal SZOSTAK, Tongliang ZHOU, Shiyi YANG
  • Publication number: 20240383894
    Abstract: The present disclosure provides N-heterocyclic carbene ligands, catalyst complexes thereof, and methods using same. The present disclosure further provides synthetic methods of preparing the N-heterocyclic carbene ligands and catalyst complexes disclosed herein.
    Type: Application
    Filed: December 20, 2022
    Publication date: November 21, 2024
    Inventors: Michal Szostak, Pengcheng Gao
  • Publication number: 20240181438
    Abstract: The present disclosure relates in part to novel complexes of unsymmetrical N-heterocylic carbene (NHC) ligands and group 10 or 11 metals. The present disclosure further relates to methods of electrophilic functionalization of alkynes and/or nitriles using the NHC catalysts described herein.
    Type: Application
    Filed: March 1, 2022
    Publication date: June 6, 2024
    Applicant: Rutgers, The State University of New Jersey
    Inventors: Michal Szostak, Qun Zhao, Md. Mahbubur Rahman
  • Publication number: 20240165597
    Abstract: The present disclosure relates in part to sterically hindered N-aliphatic N-heterocyclic carbene (NHC) ligands, which are readily synthetically available from inexpensive starting materials. The present disclosure further relates to NHC catalyst complexes comprising transition metals such as Cu, Ag, Au, and Pd. Furthermore, the present disclosure provides methods for using the catalysts described herein in a number of organic transformations, including alkyne hydroboration and hydration, in addition to C—O, C—C, and C—N coupling reactions.
    Type: Application
    Filed: March 2, 2022
    Publication date: May 23, 2024
    Applicant: Rutgers, The State University of New Jersey
    Inventors: Michal Szostak, Md. Mahbubur Rahman
  • Publication number: 20230117830
    Abstract: The present disclosure provides, in part, a new class of highly active Pd(II)-NHC complexes bearing anilines as throw-away ligands. These catalysts are well-defined, air- and moisture-stable, and can be easily purified by chromatographic techniques. High activity and generality has been exemplified in the Suzuki-Miyaura cross-coupling by C—N, C—O and C—Cl cleavage. Facile syntheses of these catalysts is also described.
    Type: Application
    Filed: January 8, 2021
    Publication date: April 20, 2023
    Inventors: Michal Szostak, Shicheng Shi
  • Publication number: 20230096500
    Abstract: Provided herein, in part, is a new class of sterically bulky, easily prepared N-heterocyclic carbene (NHC) ligands of Formula I, or a salt, solvate, geometric isomer, or stereoisomer thereof. The ligands are readily synthetically accessible exploiting the cost-effective, modular alkylation of anilines. The NHC ligands of the present disclosure can be used to prepare effective catalysts with transition metals, including the compound of Formula II, or a salt, solvate, geometric isomer, or stereoisomer thereof. In certain embodiments, the transition metal is Pd.
    Type: Application
    Filed: January 8, 2021
    Publication date: March 30, 2023
    Inventors: Michal Szostak, Qun Zhao, Guangrong Meng, Guangchen Li