Cover Picture: Organocatalysis by Neutral Multidentate Halogen‐Bond Donors (Angew. Chem. Int. Ed. 27/2013). Issue 27 (5th June 2013)

• Record Type: Journal Article
• Authors: Kniep, Florian; Jungbauer, Stefan H.; Zhang, Qi; Walter, Sebastian M.; Schindler, Severin; Schnapperelle, Ingo; Herdtweck, Eberhardt; Huber, Stefan M.
• Is Part Of: Angewandte Chemie international edition. Volume 52:Issue 27(2013)
• Page Start: 6787
• Page End: 6787
• Publication Date: 2013-06-05
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201304261
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="graphical" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <italic> <bold>Neutral multidentate</bold> </italic> halogen‐bond donors (halogen‐based Lewis acids) can be used as organocatalysts in a halide abstraction reaction. In their Communication on <ext-link ext-link-type="doi" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink">page 7028 ff., </ext-link> S. M. Huber et al. describe the halogen‐bond‐catalyzed reaction of 1‐chloroisochroman with ketene silyl acetals. The organocatalytic activity crucially depends on the iodine substituents of the halogen‐bond donors, and hidden acid catalysts can be ruled out with high probability.<boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgg22f1qqkn" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>