Back Cover: Origin of the Superior Performance of (Thio)Squaramides over (Thio)Ureas in Organocatalysis (Chem. Eur. J. 45/2013). Issue 45 (23rd October 2013)

• Record Type: Journal Article
• Authors: Lu, Tongxiang; Wheeler, Steven E.
• Is Part Of: Chemistry. Volume 19:Issue 45(2013)
• Page Start: 15424
• Page End: 15424
• Publication Date: 2013-10-23
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201390182
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="graphical" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>Squaramides </bold> are widely recognized as superior dual‐hydrogen‐bonding elements compared to (thio)ureas and have found many applications in the fields of molecular recognition and organocatalysis. In their Full Paper on <ext-link ext-link-type="doi" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink">page 15141 ff.</ext-link>, T. Lu and S. E. Wheeler demonstrate that thiosquaramides provide even stronger hydrogen‐bonding interactions and propose a thiosquaramide‐based aminocatalyst for the asymmetric Diels–Alder cycloaddition of nitroalkenes to anthracene.<boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgg4t7ndd20" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>