Aza[6]helicene Platinum Complexes: Chirality Control of cis–trans Isomerism1. Issue 23 (17th April 2014)

• Record Type: Journal Article
• Authors: Mendola, Daniele; Saleh, Nidal; Vanthuyne, Nicolas; Roussel, Christian; Toupet, Loïc; Castiglione, Franca; Caronna, Tullio; Mele, Andrea; Crassous, Jeanne
• Is Part Of: Angewandte Chemie international edition. Volume 53:Issue 23(2014)
• Page Start: 5786
• Page End: 5790
• Publication Date: 2014-04-17
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201401004
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>It was serendipitously observed that <italic>cis</italic>‐[PtCl₂(NCEt)PPh₃] reacted differently with either racemic or enantiopure 4‐aza[6]helicene, giving respectively <italic>cis</italic> (racemic) and <italic>trans</italic> (enantiopure) [Pt^IICl₂(4‐aza[6]helicene)PPh₃] complexes. This unexpected reactivity is explained through a dynamic process (crystallization‐induced diastereoselective transformation) and enables a new aspect of reactivity in chiral transition‐metal complexes to be addressed.</p> </abstract>