Angewandte Chemie International Edition

Cover image for Vol. 56 Issue 35

Editor: Peter Gölitz, Deputy Editors: Neville Compton, Haymo Ross

Online ISSN: 1521-3773

Associated Title(s): Angewandte Chemie, Chemistry - A European Journal, Chemistry – An Asian Journal, ChemistryOpen, ChemPhotoChem, ChemPlusChem, Zeitschrift für Chemie

Cover Picture: Direct Catalytic Asymmetric Enolexo Aldolizations (Angew. Chem. Int. Ed. 24/2003)

42_24/2003A feather in the cap of the aldol reaction. The cover picture shows the amino acid (S)-proline surrounded by some new catalytic asymmetric intramolecular aldolizations, which are described by B. List et al. on page 2785 ff. Another example of the ever-increasing number of proline-catalyzed reactions are enolexo aldolizations. Despite these exciting discoveries, it is often forgotten that almost half of the 250 tonnes of proline produced each year is isolated from chicken feathers!

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