Issued Patents

  • Zhang, X. X.; Lang, K. Catalytic Systems for Stereoselective Synthesis of Chiral Amines by Enantiodivergent Radical CH 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 CH 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).
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