Issued Patents

  • Zhang, X. X.; Lang, K. “Catalytic Systems for Stereoselective Synthesis of Chiral Amines by Enantiodivergent Radical C–H Amination” U.S. Patent 11,161,827 (November 2, 2021).
  • Zhang, X. X.; Hu, Y. “Compositions and Methods for Catalysts Based on Bridged Chiral Amidoporphyrins and Their Metal Complexes” U.S. Patent 11,117,123 (September 14, 2021).
  • Zhang, X. P.; Zhu, S.-F. “Cobalt-Catalyzed Asymmetric Cyclopropanation of Alkenes with alpha-Nitro-Diazoacetates” U.S. Patent 8,110,699 (February 7, 2012).
  • Zhang, X. P.; Ruppel, J. V. “Intramolecular C–H Amidation with Sulfonyl Azides” U.S. Patent 7,956,193 (June 7, 2011).
  • Zhang, X. P. “Cobalt-Catalyzed Asymmetric Cyclopropanation of Electron-Deficient Olefins” U.S. Patent 7,847,041 (December 7, 2010).
  • Zhang, X. P.; Chen, Y.; Gao, G.-Y. “Chiral Porphyrins, Chiral Metalloporphyrins, and Methods for Synthesis of The Same” U.S. Patent 7,417,142 (August 26, 2008).
  • Zhang, X. P.; Chen, Y.; Gao, G.-Y.; Colvin, A. J. “Heteroatom-Substituted Porphyrins and Methods for Synthesis of The Same” U.S. Patent 6,951,935 (October 04, 2005).