A modular approach to inorganic phosphazane macrocycles

Inorganic macrocycles, based on non-carbon backbones, present exciting synthetic challenges in the systematic assembly of inorganic molecules, as well as new avenues in host-guest and supramolecular chemistry. Here we demonstrate a new high-yielding modular approach to a broad range of trimeric and...

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Hauptverfasser: Plajer, Alex (VerfasserIn) , Gade, Lutz H. (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 21 April 2017
In: Angewandte Chemie. International edition
Year: 2017, Jahrgang: 56, Heft: 31, Pages: 9087-9090
ISSN:1521-3773
DOI:10.1002/anie.201702558
Online-Zugang:Verlag, Volltext: http://dx.doi.org/10.1002/anie.201702558
Verlag, Volltext: https://onlinelibrary.wiley.com/doi/abs/10.1002/anie.201702558
Volltext
Verfasserangaben:Alex J. Plajer, Raúl García‐Rodríguez, Callum G.M. Benson, Peter D. Matthews, Andrew D. Bond, Sanjay Singh, Lutz H. Gade, and Dominic S. Wright

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520 |a Inorganic macrocycles, based on non-carbon backbones, present exciting synthetic challenges in the systematic assembly of inorganic molecules, as well as new avenues in host-guest and supramolecular chemistry. Here we demonstrate a new high-yielding modular approach to a broad range of trimeric and hexameric S- and Se-bridged inorganic macrocycles based on cyclophosphazane frameworks, using the building blocks [S=(H)P(μ-NR)]2. The method involves the in situ generation of the key intermediate [E (S )P(μ-NR)]22−(E=S, Se) dianion, which can be reacted with electrophilic [ClP(μ-NR)]2 to give PIII/PV hexameric rings or reacted with I2 to give trimeric PV variants. Important issues which are highlighted in this work are the competitive bridging ability of S versus Se in these systems and the synthesis of the first air-stable and chiral inorganic macrocycles. 
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