Lebœuf, David Harnessing the Lewis Acidity of HFIP through its Cooperation with a Calcium(II) Salt: Application to the Aza-Piancatelli Reaction. [electronic resource] - Chemistry (Weinheim an der Bergstrasse, Germany) Nov 2016 - 16165-16171 p. digital Publication Type: Journal Article ISSN: 1521-3765 Standard No.: 10.1002/chem.201603592 doi