title: Structure and Mechanism in Cinchona Alkaloid Chemistry: Overturning a 50-Year-Old Misconception.
abstract: Long-standing errors of the supposedly established literature, including textbooks and data bases have been corrected: The structure of the hetero-cinchona bases in the crystal and in solution (see scheme) and the mechanism of their formation from quinine and quinidine have been elucidated.
authors.affiliation: Institut für Organische Chemie der Universität, Schneiderberg 1B, D-30167 Hannover (Germany).
authors.initials: WM
authors.lastname: Braje
authors.initials: R
authors.lastname: Wartchow
authors.initials: HM
authors.lastname: Hoffmann