title: Synthesis and structural aspects of N-triflylphosphoramides and their calcium salts--highly acidic and effective Brønsted acids.
authors.affiliation: RWTH Aachen University, Institute of Organic Chemistry, Landoltweg 1, 52074 Aachen, Germany. magnus.rueping@rwth-aachen.de
authors.forename: Magnus
authors.initials: M
authors.lastname: Rueping
authors.forename: Boris J
authors.initials: BJ
authors.lastname: Nachtsheim
authors.forename: René M
authors.initials: RM
authors.lastname: Koenigs
authors.forename: Winai
authors.initials: W
authors.lastname: Ieawsuwan