4: Yonggui Robin Chi and Bhoopendra Tiwari, "Facile Access to Chiral Ketones via Metal-free Oxidative C-C Bond Cleavage of Aldehydes by O2", Patent application filed.
3: Boz, E.; Chi, Y.; Diallo, M. S.; Frechet, J. M. J. ”Extraction of Anions from Solutions and Mixtures Using Hyberbranched Macromolecules”,PCT Int. Appl. (2010), WO 2010040117 A2 20100408
2: Chi, Y.; Guo, L.; Gellman, S. H. “Aminoethylation of aldehydes in synthesis of γ-amino acids”, U.S. Pat. Appl. Publ. (2009), US 20090264676 A1 20091022
1:Chi, Y.; English, E. P.; Pomerantz, W. C.; Horne, W. S.; Guo, L.; Gellman, S. H. “Concise β2-Amino Acid Synthesis Via Organocatalytic Aminomethylation”, PCT Int. Appl. 2007, WO 2007112358. (US Patent Application No: 2008/0058,548 )