Enantioselective Access to Bicyclo[4.2.0]octanes by a Sequence of [2+2] Photocycloaddition/Reduction/Fragmentation. Issue 38 (23rd August 2013)

• Record Type: Journal Article
• Authors: Yin, Guoyin; Herdtweck, Eberhardt; Bach, Thorsten
• Is Part Of: Chemistry. Volume 19:Issue 38(2013)
• Page Start: 12639
• Page End: 12643
• Publication Date: 2013-08-23
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201302882
• Languages: English
• ISSNs: 0947-6539

Abstract

<abstract abstract-type="graphical" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p> <bold>Tricks of the trade</bold>: Because intramolecular Cu‐catalyzed access to bicyclo[4.2.0]octanes is not feasible, an oxygen bridge was introduced to facilitate the [2+2] photocycloaddition. Starting from compounds similar to <bold>1</bold>, products such as <bold>2</bold> could be obtained enantioselectiviely in three steps after ring‐opening metathesis (see scheme).<boxed-text content-type="graphic" position="anchor" orientation="portrait"><graphic position="anchor" mimetype="image" xlink:href="ark:/27927/pgg37rmnzfp" orientation="portrait" xlink:type="simple" xmlns:xlink="http://www.w3.org/1999/xlink" /></boxed-text></p> </abstract>