@article{Zhao2016, author = "Chenfei Zhao and Shawn B. Chen and Daniel Seidel", title = "{Direct Formation of Oxocarbenium Ions under Weakly Acidic Conditions: Catalytic Enantioselective Oxa-Pictet–Spengler Reactions}", year = "2016", month = "7", url = "https://acs.figshare.com/articles/journal_contribution/Direct_Formation_of_Oxocarbenium_Ions_under_Weakly_Acidic_Conditions_Catalytic_Enantioselective_Oxa-Pictet_Spengler_Reactions/3485651", doi = "10.1021/jacs.6b05225.s001" }