Neo‐Fused Hexaphyrin: A Molecular Puzzle Containing an N‐Linked Pentaphyrin1. Issue 51 (16th October 2014)

• Record Type: Journal Article
• Authors: Wei, Pingchun; Zhang, Kai; Li, Xin; Meng, Deying; Ågren, Hans; Ou, Zhongping; Ng, Seikweng; Furuta, Hiroyuki; Xie, Yongshu
• Is Part Of: Angewandte Chemie international edition. Volume 53:Issue 51(2014)
• Page Start: 14069
• Page End: 14073
• Publication Date: 2014-10-16
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201408307
• Languages: English
• ISSNs: 1433-7851

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The first neo‐confused hexaphyrin(1.1.1.1.1.0) was synthesized by oxidative ring closure of a hexapyrrane bearing two terminal "confused" pyrroles. The new compound displays a folded conformation with a short interpyrrolic C⋅⋅⋅N distance of 3.102 Å, and thus it readily underwent ring fusion to afford a neo‐fused hexaphyrin with an unprecedented 5, 5, 5, 7‐tetracyclic ring structure. Furthermore, coordination of Cu^II triggered a ring opening/contracting reaction to afford a Cu^II complex of an N‐linked pentaphyrin derivative. The roles of reactive NC bonds in the porphyrinoid macrocycles were demonstrated.</p> </abstract>