Inside Back Cover: Observation of Diastereomeric Interconversions of β‐Sulfinylsubporphyrins as Evidence for Bowl Inversion (Chem. Eur. J. 33/2015). Issue 33 (3rd August 2015)

• Record Type: Journal Article
• Authors: Yoshida, Kota; Osuka, Atsuhiro
• Is Part Of: Chemistry. Volume 21:Issue 33(2015)
• Page Start: 11907
• Page End: 11907
• Publication Date: 2015-08-03
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201590150
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="graphical" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>Subporphyrins</bold>­ <italic>B</italic>‐Methoxy and <italic>B</italic>‐phenyl β‐sulfinylsubporphyrins have been separated into their diastereomers and their diastereomeric interconversions have been studied in various solvents, as reported by K. Yoshida and A. Osuka in their Full Paper on <ext-link ext-link-type="doi" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink">page 11727 ff.</ext-link> Diastereomeric interconversion of <italic>B</italic>‐methoxy subporphyrin diastereomers takes place in protic solvents as the first experimental observation of bowl inversion of a subporphyrin, which likely proceeds by an S_N1‐type mechanism via a subporphyrin borenium cation.<graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgj2c0nt63b" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></p> </abstract>