Q. My student got this paper from the library but not the Supporting Information. It looks like an online download.

If you are looking for the citation information, it is: 

Georg Frey, Hieu-Trinh Luu, Plamen Bichovski, Markus Feurer and Dr. Jan Streuff. Convenient Titanium(III)-Catalyzed Synthesis of Cyclic Aminoketones and Pyrrolidinones-Development of a Formal [4+1] Cycloaddition. Angewandte Chemie International Edition. Volume 52, Issue 28, pages 7131-7134. Published July 8, 2013.

If you are looking for the database the student retrieved it from, the most likely one is Wiley Online Library at http://onlinelibrary.wiley.com/doi/10.1002/anie.201302460/abstract;jsessionid=DBFA55444B6A52058E75D95051029037.f02t01